49139925 has 24 divisors (see below), whose sum is σ = 82003680. Its totient is φ = 25963200.

The previous prime is 49139903. The next prime is 49139939. The reversal of 49139925 is 52993194.

It is not a de Polignac number, because 49139925 - 2⁹ = 49139413 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5170 + ... + 11180.

It is an arithmetic number, because the mean of its divisors is an integer number (3416820).

Almost surely, 2^49139925 is an apocalyptic number.

It is an amenable number.

49139925 is a deficient number, since it is larger than the sum of its proper divisors (32863755).

49139925 is a wasteful number, since it uses less digits than its factorization.

49139925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6133 (or 6128 counting only the distinct ones).

The product of its digits is 87480, while the sum is 42.

The square root of 49139925 is about 7009.9875178206. The cubic root of 49139925 is about 366.2785585794.

The spelling of 49139925 in words is "forty-nine million, one hundred thirty-nine thousand, nine hundred twenty-five".