49139525 has 24 divisors (see below), whose sum is σ = 62995968. Its totient is φ = 38000000.

The previous prime is 49139479. The next prime is 49139527. The reversal of 49139525 is 52593194.

It is not a de Polignac number, because 49139525 - 2¹⁰ = 49138501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49139527) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 195650 + ... + 195900.

It is an arithmetic number, because the mean of its divisors is an integer number (2624832).

Almost surely, 2^49139525 is an apocalyptic number.

It is an amenable number.

49139525 is a deficient number, since it is larger than the sum of its proper divisors (13856443).

49139525 is a wasteful number, since it uses less digits than its factorization.

49139525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493 (or 488 counting only the distinct ones).

The product of its digits is 48600, while the sum is 38.

The square root of 49139525 is about 7009.9589870412. The cubic root of 49139525 is about 366.2775647384.

The spelling of 49139525 in words is "forty-nine million, one hundred thirty-nine thousand, five hundred twenty-five".