25401772 has 36 divisors (see below), whose sum is σ = 50467648. Its totient is φ = 11167200.

The previous prime is 25401751. The next prime is 25401773. The reversal of 25401772 is 27710452.

It is a self number, because there is not a number n which added to its sum of digits gives 25401772.

It is not an unprimeable number, because it can be changed into a prime (25401773) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14158 + ... + 15850.

Almost surely, 2^25401772 is an apocalyptic number.

25401772 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

25401772 is a deficient number, since it is larger than the sum of its proper divisors (25065876).

25401772 is a wasteful number, since it uses less digits than its factorization.

25401772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1750 (or 1737 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 28.

The square root of 25401772 is about 5040.0170634632. The cubic root of 25401772 is about 293.9598414922.

The spelling of 25401772 in words is "twenty-five million, four hundred one thousand, seven hundred seventy-two".