25148812 has 24 divisors (see below), whose sum is σ = 48927872. Its totient is φ = 11232000.

The previous prime is 25148803. The next prime is 25148813. The reversal of 25148812 is 21884152.

It is a super-2 number, since 2×25148812² = 1264925490022688, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25148813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6189 + ... + 9412.

Almost surely, 2^25148812 is an apocalyptic number.

It is an amenable number.

25148812 is a deficient number, since it is larger than the sum of its proper divisors (23779060).

25148812 is a wasteful number, since it uses less digits than its factorization.

25148812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15649 (or 15647 counting only the distinct ones).

The product of its digits is 5120, while the sum is 31.

The square root of 25148812 is about 5014.8591206533. The cubic root of 25148812 is about 292.9807983627.

The spelling of 25148812 in words is "twenty-five million, one hundred forty-eight thousand, eight hundred twelve".