25232664 has 64 divisors (see below), whose sum is σ = 65318400. Its totient is φ = 8118656.

The previous prime is 25232659. The next prime is 25232677. The reversal of 25232664 is 46623252.

Its product of digits (17280) is a multiple of the sum of its prime factors (384).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105457 + ... + 105695.

It is an arithmetic number, because the mean of its divisors is an integer number (1020600).

Almost surely, 2^25232664 is an apocalyptic number.

25232664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25232664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32659200).

25232664 is an abundant number, since it is smaller than the sum of its proper divisors (40085736).

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

25232664 is a wasteful number, since it uses less digits than its factorization.

25232664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384 (or 380 counting only the distinct ones).

The product of its digits is 17280, while the sum is 30.

The square root of 25232664 is about 5023.2125179013. The cubic root of 25232664 is about 293.3060592180.

It can be divided in two parts, 252 and 32664, that multiplied together give a palindrome (8231328).

The spelling of 25232664 in words is "twenty-five million, two hundred thirty-two thousand, six hundred sixty-four".