25010139 has 24 divisors (see below), whose sum is σ = 42320448. Its totient is φ = 12991440.

The previous prime is 25010071. The next prime is 25010143. The reversal of 25010139 is 93101052.

It is not a de Polignac number, because 25010139 - 2⁸ = 25009883 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (25010339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6117 + ... + 9350.

It is an arithmetic number, because the mean of its divisors is an integer number (1763352).

Almost surely, 2^25010139 is an apocalyptic number.

25010139 is a deficient number, since it is larger than the sum of its proper divisors (17310309).

25010139 is a wasteful number, since it uses less digits than its factorization.

25010139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15495 (or 15488 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 21.

The square root of 25010139 is about 5001.0137972215. The cubic root of 25010139 is about 292.4412972999.

The spelling of 25010139 in words is "twenty-five million, ten thousand, one hundred thirty-nine".