25720563372 has 192 divisors, whose sum is σ = 76128159744. Its totient is φ = 6585384960.

The previous prime is 25720563353. The next prime is 25720563373. The reversal of 25720563372 is 27336502752.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (25720563373) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7650972 + ... + 7654332.

It is an arithmetic number, because the mean of its divisors is an integer number (396500832).

Almost surely, 2^25720563372 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25720563372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38064079872).

25720563372 is an abundant number, since it is smaller than the sum of its proper divisors (50407596372).

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

25720563372 is a wasteful number, since it uses less digits than its factorization.

25720563372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3648 (or 3646 counting only the distinct ones).

The product of its (nonzero) digits is 529200, while the sum is 42.

The spelling of 25720563372 in words is "twenty-five billion, seven hundred twenty million, five hundred sixty-three thousand, three hundred seventy-two".