5101201521 has 12 divisors (see below), whose sum is σ = 7935202548. Its totient is φ = 3139200864.

The previous prime is 5101201459. The next prime is 5101201531. The reversal of 5101201521 is 1251021015.

5101201521 is a `hidden beast` number, since 510 + 1 + 2 + 0 + 152 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 907214400 + 4193987121 = 30120^2 + 64761^2 .

It is not a de Polignac number, because 5101201521 - 2¹⁴ = 5101185137 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5101201494 and 5101201503.

It is not an unprimeable number, because it can be changed into a prime (5101201531) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21799890 + ... + 21800123.

It is an arithmetic number, because the mean of its divisors is an integer number (661266879).

Almost surely, 2^5101201521 is an apocalyptic number.

It is an amenable number.

5101201521 is a deficient number, since it is larger than the sum of its proper divisors (2834001027).

5101201521 is a wasteful number, since it uses less digits than its factorization.

5101201521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43600032 (or 43600029 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 18.

The square root of 5101201521 is about 71422.6961196509. The cubic root of 5101201521 is about 1721.4357852001.

Adding to 5101201521 its reverse (1251021015), we get a palindrome (6352222536).

The spelling of 5101201521 in words is "five billion, one hundred one million, two hundred one thousand, five hundred twenty-one".