25536464 has 10 divisors (see below), whose sum is σ = 49476930. Its totient is φ = 12768224.

The previous prime is 25536461. The next prime is 25536473. The reversal of 25536464 is 46463552.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 21160000 + 4376464 = 4600^2 + 2092^2 .

It is a super-2 number, since 2×25536464² = 1304221987246592, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25536461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 797999 + ... + 798030.

It is an arithmetic number, because the mean of its divisors is an integer number (4947693).

Almost surely, 2^25536464 is an apocalyptic number.

It is an amenable number.

25536464 is a deficient number, since it is larger than the sum of its proper divisors (23940466).

25536464 is a wasteful number, since it uses less digits than its factorization.

25536464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1596037 (or 1596031 counting only the distinct ones).

The product of its digits is 86400, while the sum is 35.

The square root of 25536464 is about 5053.3616533947. The cubic root of 25536464 is about 294.4784964165.

The spelling of 25536464 in words is "twenty-five million, five hundred thirty-six thousand, four hundred sixty-four".