25266388 has 24 divisors (see below), whose sum is σ = 51105600. Its totient is φ = 10705728.

The previous prime is 25266361. The next prime is 25266427. The reversal of 25266388 is 88366252.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 25266388.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2578 + ... + 7561.

It is an arithmetic number, because the mean of its divisors is an integer number (2129400).

Almost surely, 2^25266388 is an apocalyptic number.

25266388 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

25266388 is an abundant number, since it is smaller than the sum of its proper divisors (25839212).

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

25266388 is a wasteful number, since it uses less digits than its factorization.

25266388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10239 (or 10237 counting only the distinct ones).

The product of its digits is 138240, while the sum is 40.

The square root of 25266388 is about 5026.5682130058. The cubic root of 25266388 is about 293.4366710062.

The spelling of 25266388 in words is "twenty-five million, two hundred sixty-six thousand, three hundred eighty-eight".