25261902 has 16 divisors (see below), whose sum is σ = 56137680. Its totient is φ = 8420616.

The previous prime is 25261897. The next prime is 25261919. The reversal of 25261902 is 20916252.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 233853 + ... + 233960.

It is an arithmetic number, because the mean of its divisors is an integer number (3508605).

Almost surely, 2^25261902 is an apocalyptic number.

25261902 is an abundant number, since it is smaller than the sum of its proper divisors (30875778).

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

25261902 is a wasteful number, since it uses less digits than its factorization.

25261902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467824 (or 467818 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 25261902 is about 5026.1219642981. The cubic root of 25261902 is about 293.4193036007.

The spelling of 25261902 in words is "twenty-five million, two hundred sixty-one thousand, nine hundred two".