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5012100521 is a prime number
BaseRepresentation
bin1001010101011111…
…01001010110101001
3110221022011002100122
410222233221112221
540231044204041
62145202413025
7235130102651
oct45257512651
913838132318
105012100521
11214222233a
12b7a661175
1361b50756c
14357931361
151e5046c4b
hex12abe95a9

5012100521 has 2 divisors, whose sum is σ = 5012100522. Its totient is φ = 5012100520.

The previous prime is 5012100493. The next prime is 5012100523. The reversal of 5012100521 is 1250012105.

5012100521 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3450270121 + 1561830400 = 58739^2 + 39520^2 .

It is a cyclic number.

It is not a de Polignac number, because 5012100521 - 222 = 5007906217 is a prime.

Together with 5012100523, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5012100521.

It is not a weakly prime, because it can be changed into another prime (5012100523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2506050260 + 2506050261.

It is an arithmetic number, because the mean of its divisors is an integer number (2506050261).

Almost surely, 25012100521 is an apocalyptic number.

It is an amenable number.

5012100521 is a deficient number, since it is larger than the sum of its proper divisors (1).

5012100521 is an equidigital number, since it uses as much as digits as its factorization.

5012100521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 100, while the sum is 17.

The square root of 5012100521 is about 70796.1900175426. The cubic root of 5012100521 is about 1711.3542753644.

Adding to 5012100521 its reverse (1250012105), we get a palindrome (6262112626).

The spelling of 5012100521 in words is "five billion, twelve million, one hundred thousand, five hundred twenty-one".