25400463 has 32 divisors (see below), whose sum is σ = 38610432. Its totient is φ = 14716800.

The previous prime is 25400449. The next prime is 25400467. The reversal of 25400463 is 36400452.

It is not a de Polignac number, because 25400463 - 2⁶ = 25400399 is a prime.

It is a super-2 number, since 2×25400463² = 1290367041228738, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25400467) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 86545 + ... + 86837.

It is an arithmetic number, because the mean of its divisors is an integer number (1206576).

Almost surely, 2^25400463 is an apocalyptic number.

25400463 is a deficient number, since it is larger than the sum of its proper divisors (13209969).

25400463 is a wasteful number, since it uses less digits than its factorization.

25400463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 25400463 is about 5039.8872011187. The cubic root of 25400463 is about 293.9547919751.

The spelling of 25400463 in words is "twenty-five million, four hundred thousand, four hundred sixty-three".