25207254590 has 96 divisors (see below), whose sum is σ = 54837445824. Its totient is φ = 8171228160.

The previous prime is 25207254557. The next prime is 25207254599. The reversal of 25207254590 is 9545270252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25207254599) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 24688280 + ... + 24689300.

It is an arithmetic number, because the mean of its divisors is an integer number (571223394).

Almost surely, 2^25207254590 is an apocalyptic number.

25207254590 is an abundant number, since it is smaller than the sum of its proper divisors (29630191234).

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

25207254590 is a wasteful number, since it uses less digits than its factorization.

25207254590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2050 (or 2031 counting only the distinct ones).

The product of its (nonzero) digits is 252000, while the sum is 41.

The spelling of 25207254590 in words is "twenty-five billion, two hundred seven million, two hundred fifty-four thousand, five hundred ninety".