25197073460 has 24 divisors (see below), whose sum is σ = 56984151336. Its totient is φ = 9303534720.

The previous prime is 25197073427. The next prime is 25197073471. The reversal of 25197073460 is 6437079152.

It can be written as a sum of positive squares in 4 ways, for example, as 4508853904 + 20688219556 = 67148^2 + 143834^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48455651 + ... + 48456170.

It is an arithmetic number, because the mean of its divisors is an integer number (2374339639).

Almost surely, 2^25197073460 is an apocalyptic number.

25197073460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25197073460 is an abundant number, since it is smaller than the sum of its proper divisors (31787077876).

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

25197073460 is a wasteful number, since it uses less digits than its factorization.

25197073460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96911843 (or 96911841 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 44.

The spelling of 25197073460 in words is "twenty-five billion, one hundred ninety-seven million, seventy-three thousand, four hundred sixty".