2053516402521 has 48 divisors (see below), whose sum is σ = 3137311008000. Its totient is φ = 1290731500800.

The previous prime is 2053516402493. The next prime is 2053516402537. The reversal of 2053516402521 is 1252046153502.

2053516402521 is a `hidden beast` number, since 2 + 0 + 5 + 3 + 5 + 1 + 640 + 2 + 5 + 2 + 1 = 666.

It is not a de Polignac number, because 2053516402521 - 2¹³ = 2053516394329 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2053516402541) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 69830421 + ... + 69859821.

It is an arithmetic number, because the mean of its divisors is an integer number (65360646000).

Almost surely, 2^{2053516402521} is an apocalyptic number.

It is an amenable number.

2053516402521 is a deficient number, since it is larger than the sum of its proper divisors (1083794605479).

2053516402521 is a wasteful number, since it uses less digits than its factorization.

2053516402521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31374 (or 31371 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The spelling of 2053516402521 in words is "two trillion, fifty-three billion, five hundred sixteen million, four hundred two thousand, five hundred twenty-one".