25620260652 has 72 divisors (see below), whose sum is σ = 78367869216. Its totient is φ = 6889480704.

The previous prime is 25620260621. The next prime is 25620260657. The reversal of 25620260652 is 25606202652.

25620260652 is a `hidden beast` number, since 2 + 5 + 620 + 26 + 0 + 6 + 5 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (25620260657) 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 23 ways as a sum of consecutive naturals, for example, 2985943 + ... + 2994510.

It is an arithmetic number, because the mean of its divisors is an integer number (1088442628).

Almost surely, 2^25620260652 is an apocalyptic number.

It is an amenable number.

25620260652 is an abundant number, since it is smaller than the sum of its proper divisors (52747608564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25620260652 is a wasteful number, since it uses less digits than its factorization.

25620260652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5980487 (or 5980482 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The spelling of 25620260652 in words is "twenty-five billion, six hundred twenty million, two hundred sixty thousand, six hundred fifty-two".