25148136 has 32 divisors (see below), whose sum is σ = 67707360. Its totient is φ = 7737792.

The previous prime is 25148069. The next prime is 25148141. The reversal of 25148136 is 63184152.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

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, 39990 + ... + 40613.

It is an arithmetic number, because the mean of its divisors is an integer number (2115855).

Almost surely, 2^25148136 is an apocalyptic number.

25148136 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

25148136 is an abundant number, since it is smaller than the sum of its proper divisors (42559224).

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

25148136 is a wasteful number, since it uses less digits than its factorization.

25148136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80625 (or 80621 counting only the distinct ones).

The product of its digits is 5760, while the sum is 30.

The square root of 25148136 is about 5014.7917205005. The cubic root of 25148136 is about 292.9781732315.

The spelling of 25148136 in words is "twenty-five million, one hundred forty-eight thousand, one hundred thirty-six".