249055625 has 80 divisors (see below), whose sum is σ = 398872320. Its totient is φ = 151200000.

The previous prime is 249055603. The next prime is 249055657. The reversal of 249055625 is 526550942.

It is not a de Polignac number, because 249055625 - 2⁶ = 249055561 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1649300 + ... + 1649450.

It is an arithmetic number, because the mean of its divisors is an integer number (4985904).

Almost surely, 2^249055625 is an apocalyptic number.

249055625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

249055625 is a deficient number, since it is larger than the sum of its proper divisors (149816695).

249055625 is a wasteful number, since it uses less digits than its factorization.

249055625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220 (or 205 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 38.

The square root of 249055625 is about 15781.4962852069. The cubic root of 249055625 is about 629.1662987489.

The spelling of 249055625 in words is "two hundred forty-nine million, fifty-five thousand, six hundred twenty-five".