25397463 has 32 divisors (see below), whose sum is σ = 43036672. Its totient is φ = 12960000.

The previous prime is 25397447. The next prime is 25397483. The reversal of 25397463 is 36479352.

It is not a de Polignac number, because 25397463 - 2⁴ = 25397447 is a prime.

It is a super-2 number, since 2×25397463² = 1290062253672738, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25397443) 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, 6963 + ... + 9963.

It is an arithmetic number, because the mean of its divisors is an integer number (1344896).

Almost surely, 2^25397463 is an apocalyptic number.

25397463 is a deficient number, since it is larger than the sum of its proper divisors (17639209).

25397463 is a wasteful number, since it uses less digits than its factorization.

25397463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3055.

The product of its digits is 136080, while the sum is 39.

The square root of 25397463 is about 5039.5895666215. The cubic root of 25397463 is about 293.9432187071.

The spelling of 25397463 in words is "twenty-five million, three hundred ninety-seven thousand, four hundred sixty-three".