25400379 has 16 divisors (see below), whose sum is σ = 34452000. Its totient is φ = 16644096.

The previous prime is 25400371. The next prime is 25400387. The reversal of 25400379 is 97300452.

It is an interprime number because it is at equal distance from previous prime (25400371) and next prime (25400387).

It is not a de Polignac number, because 25400379 - 2³ = 25400371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25400371) 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, 56347 + ... + 56795.

It is an arithmetic number, because the mean of its divisors is an integer number (2153250).

Almost surely, 2^25400379 is an apocalyptic number.

25400379 is a deficient number, since it is larger than the sum of its proper divisors (9051621).

25400379 is a wasteful number, since it uses less digits than its factorization.

25400379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 734.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 25400379 is about 5039.8788675920. The cubic root of 25400379 is about 293.9544679360.

The spelling of 25400379 in words is "twenty-five million, four hundred thousand, three hundred seventy-nine".