25132575990 has 32 divisors (see below), whose sum is σ = 60330374496. Its totient is φ = 6700665600.

The previous prime is 25132575943. The next prime is 25132576009. The reversal of 25132575990 is 9957523152.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70914 + ... + 235146.

It is an arithmetic number, because the mean of its divisors is an integer number (1885324203).

Almost surely, 2^25132575990 is an apocalyptic number.

25132575990 is an abundant number, since it is smaller than the sum of its proper divisors (35197798506).

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

25132575990 is a wasteful number, since it uses less digits than its factorization.

25132575990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169344.

The product of its (nonzero) digits is 850500, while the sum is 48.

The spelling of 25132575990 in words is "twenty-five billion, one hundred thirty-two million, five hundred seventy-five thousand, nine hundred ninety".