15625052651 has 16 divisors (see below), whose sum is σ = 17417702400. Its totient is φ = 13917391488.

The previous prime is 15625052627. The next prime is 15625052657.

15625052651 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 15625052651 - 2⁶ = 15625052587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15625052657) 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 15 ways as a sum of consecutive naturals, for example, 662870 + ... + 686036.

It is an arithmetic number, because the mean of its divisors is an integer number (1088606400).

Almost surely, 2^15625052651 is an apocalyptic number.

15625052651 is a deficient number, since it is larger than the sum of its proper divisors (1792649749).

15625052651 is a wasteful number, since it uses less digits than its factorization.

15625052651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24998.

The product of its (nonzero) digits is 90000, while the sum is 38.

The spelling of 15625052651 in words is "fifteen billion, six hundred twenty-five million, fifty-two thousand, six hundred fifty-one".