49501139 has 4 divisors (see below), whose sum is σ = 49520856. Its totient is φ = 49481424.

The previous prime is 49501103. The next prime is 49501181. The reversal of 49501139 is 93110594.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 49501139 - 2²⁴ = 32723923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49501189) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5429 + ... + 11334.

It is an arithmetic number, because the mean of its divisors is an integer number (12380214).

Almost surely, 2^49501139 is an apocalyptic number.

49501139 is a deficient number, since it is larger than the sum of its proper divisors (19717).

49501139 is a wasteful number, since it uses less digits than its factorization.

49501139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19716.

The product of its (nonzero) digits is 4860, while the sum is 32.

The square root of 49501139 is about 7035.7045844748. The cubic root of 49501139 is about 367.1738392950.

The spelling of 49501139 in words is "forty-nine million, five hundred one thousand, one hundred thirty-nine".