49138526 has 16 divisors (see below), whose sum is σ = 75330000. Its totient is φ = 24031488.

The previous prime is 49138513. The next prime is 49138549. The reversal of 49138526 is 62583194.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 49138526.

It is a congruent number.

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, 52430 + ... + 53358.

It is an arithmetic number, because the mean of its divisors is an integer number (4708125).

Almost surely, 2^49138526 is an apocalyptic number.

49138526 is a deficient number, since it is larger than the sum of its proper divisors (26191474).

49138526 is a wasteful number, since it uses less digits than its factorization.

49138526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1483.

The product of its digits is 51840, while the sum is 38.

The square root of 49138526 is about 7009.8877309127. The cubic root of 49138526 is about 366.2750825969.

The spelling of 49138526 in words is "forty-nine million, one hundred thirty-eight thousand, five hundred twenty-six".