53010402521 has 4 divisors (see below), whose sum is σ = 53084131200. Its totient is φ = 52936673844.

The previous prime is 53010402503. The next prime is 53010402551. The reversal of 53010402521 is 12520401035.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 53010402521 - 2²² = 53006208217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53010402551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36863261 + ... + 36864698.

It is an arithmetic number, because the mean of its divisors is an integer number (13271032800).

Almost surely, 2^53010402521 is an apocalyptic number.

It is an amenable number.

53010402521 is a deficient number, since it is larger than the sum of its proper divisors (73728679).

53010402521 is an equidigital number, since it uses as much as digits as its factorization.

53010402521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73728678.

The product of its (nonzero) digits is 1200, while the sum is 23.

Adding to 53010402521 its reverse (12520401035), we get a palindrome (65530803556).

The spelling of 53010402521 in words is "fifty-three billion, ten million, four hundred two thousand, five hundred twenty-one".