25240987458 has 24 divisors (see below), whose sum is σ = 54697734000. Its totient is φ = 8412288984.

The previous prime is 25240987417. The next prime is 25240987459. The reversal of 25240987458 is 85478904252.

It is not an unprimeable number, because it can be changed into a prime (25240987459) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2073 + ... + 224691.

It is an arithmetic number, because the mean of its divisors is an integer number (2279072250).

Almost surely, 2^25240987458 is an apocalyptic number.

25240987458 is an abundant number, since it is smaller than the sum of its proper divisors (29456746542).

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

25240987458 is a wasteful number, since it uses less digits than its factorization.

25240987458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228926 (or 228923 counting only the distinct ones).

The product of its (nonzero) digits is 6451200, while the sum is 54.

The spelling of 25240987458 in words is "twenty-five billion, two hundred forty million, nine hundred eighty-seven thousand, four hundred fifty-eight".