25932581490 has 64 divisors (see below), whose sum is σ = 69367674240. Its totient is φ = 6166010880.

The previous prime is 25932581483. The next prime is 25932581501. The reversal of 25932581490 is 9418523952.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1328421 + ... + 1347800.

It is an arithmetic number, because the mean of its divisors is an integer number (1083869910).

Almost surely, 2^25932581490 is an apocalyptic number.

25932581490 is an abundant number, since it is smaller than the sum of its proper divisors (43435092750).

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

25932581490 is a wasteful number, since it uses less digits than its factorization.

25932581490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2676267.

The product of its (nonzero) digits is 777600, while the sum is 48.

The spelling of 25932581490 in words is "twenty-five billion, nine hundred thirty-two million, five hundred eighty-one thousand, four hundred ninety".