25620516063 has 24 divisors (see below), whose sum is σ = 39050350560. Its totient is φ = 16154138880.

The previous prime is 25620516041. The next prime is 25620516073. The reversal of 25620516063 is 36061502652.

It is a happy number.

25620516063 is a `hidden beast` number, since 25 + 6 + 20 + 5 + 1 + 606 + 3 = 666.

It is not a de Polignac number, because 25620516063 - 2²⁹ = 25083645151 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25620516013) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 676918 + ... + 713763.

It is an arithmetic number, because the mean of its divisors is an integer number (1627097940).

Almost surely, 2^25620516063 is an apocalyptic number.

25620516063 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

25620516063 is a deficient number, since it is larger than the sum of its proper divisors (13429834497).

25620516063 is a wasteful number, since it uses less digits than its factorization.

25620516063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1390799 (or 1390796 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The spelling of 25620516063 in words is "twenty-five billion, six hundred twenty million, five hundred sixteen thousand, sixty-three".