25612464 has 20 divisors (see below), whose sum is σ = 66165656. Its totient is φ = 8537472.

The previous prime is 25612463. The next prime is 25612487. The reversal of 25612464 is 46421652.

It is not an unprimeable number, because it can be changed into a prime (25612463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 266749 + ... + 266844.

Almost surely, 2^25612464 is an apocalyptic number.

25612464 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

25612464 is an abundant number, since it is smaller than the sum of its proper divisors (40553192).

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

25612464 is a wasteful number, since it uses less digits than its factorization.

25612464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533604 (or 533598 counting only the distinct ones).

The product of its digits is 11520, while the sum is 30.

The square root of 25612464 is about 5060.8758135327. The cubic root of 25612464 is about 294.7703431397.

It can be divided in two parts, 256 and 12464, that added together give a triangular number (12720 = T₁₅₉).

The spelling of 25612464 in words is "twenty-five million, six hundred twelve thousand, four hundred sixty-four".