25520696051 has 16 divisors (see below), whose sum is σ = 27953164800. Its totient is φ = 23216570208.

The previous prime is 25520695999. The next prime is 25520696053. The reversal of 25520696051 is 15069602552.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25520696051 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25520696053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 222281 + ... + 316938.

It is an arithmetic number, because the mean of its divisors is an integer number (1747072800).

Almost surely, 2^25520696051 is an apocalyptic number.

25520696051 is a deficient number, since it is larger than the sum of its proper divisors (2432468749).

25520696051 is a wasteful number, since it uses less digits than its factorization.

25520696051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539338.

The product of its (nonzero) digits is 162000, while the sum is 41.

The spelling of 25520696051 in words is "twenty-five billion, five hundred twenty million, six hundred ninety-six thousand, fifty-one".