25120428 has 48 divisors (see below), whose sum is σ = 60762240. Its totient is φ = 8072064.

The previous prime is 25120427. The next prime is 25120483. The reversal of 25120428 is 82402152.

It is a junction number, because it is equal to n+sod(n) for n = 25120398 and 25120407.

It is not an unprimeable number, because it can be changed into a prime (25120423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45651 + ... + 46197.

It is an arithmetic number, because the mean of its divisors is an integer number (1265880).

Almost surely, 2^25120428 is an apocalyptic number.

It is an amenable number.

25120428 is an abundant number, since it is smaller than the sum of its proper divisors (35641812).

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

25120428 is a wasteful number, since it uses less digits than its factorization.

25120428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686 (or 684 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 25120428 is about 5012.0283319231. The cubic root of 25120428 is about 292.8705334123.

The spelling of 25120428 in words is "twenty-five million, one hundred twenty thousand, four hundred twenty-eight".