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50021202002021 = 371351924378433
BaseRepresentation
bin10110101111110011101111…
…11110100000000001100101
320120002222110120110120011222
423113321313332200001211
523024021410203031041
6254215231205510125
713351625005442105
oct1327716776400145
9216088416416158
1050021202002021
1114a35966531008
12573a53b412345
1321bac961433c3
14c4d0793c1205
155bb2761ae74b
hex2d7e77fa0065

50021202002021 has 4 divisors (see below), whose sum is σ = 51373126380492. Its totient is φ = 48669277623552.

The previous prime is 50021202001999. The next prime is 50021202002029. The reversal of 50021202002021 is 12020020212005.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 47338940908900 + 2682261093121 = 6880330^2 + 1637761^2 .

It is a cyclic number.

It is not a de Polignac number, because 50021202002021 - 222 = 50021197807717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50021202002029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 675962189180 + ... + 675962189253.

It is an arithmetic number, because the mean of its divisors is an integer number (12843281595123).

Almost surely, 250021202002021 is an apocalyptic number.

It is an amenable number.

50021202002021 is a deficient number, since it is larger than the sum of its proper divisors (1351924378471).

50021202002021 is a wasteful number, since it uses less digits than its factorization.

50021202002021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1351924378470.

The product of its (nonzero) digits is 160, while the sum is 17.

Adding to 50021202002021 its reverse (12020020212005), we get a palindrome (62041222214026).

The spelling of 50021202002021 in words is "fifty trillion, twenty-one billion, two hundred two million, two thousand, twenty-one".

Divisors: 1 37 1351924378433 50021202002021