49539131 has 4 divisors (see below), whose sum is σ = 50136072. Its totient is φ = 48942192.

The previous prime is 49539109. The next prime is 49539167. The reversal of 49539131 is 13193594.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13193594 = 2 ⋅6596797.

It is a cyclic number.

It is not a de Polignac number, because 49539131 - 2⁶ = 49539067 is a prime.

It is a super-2 number, since 2×49539131² = 4908251000470322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 49539091 and 49539100.

It is not an unprimeable number, because it can be changed into a prime (49539431) 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, 298346 + ... + 298511.

It is an arithmetic number, because the mean of its divisors is an integer number (12534018).

Almost surely, 2^49539131 is an apocalyptic number.

49539131 is a deficient number, since it is larger than the sum of its proper divisors (596941).

49539131 is an equidigital number, since it uses as much as digits as its factorization.

49539131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 596940.

The product of its digits is 14580, while the sum is 35.

The square root of 49539131 is about 7038.4040094328. The cubic root of 49539131 is about 367.2677502738.

The spelling of 49539131 in words is "forty-nine million, five hundred thirty-nine thousand, one hundred thirty-one".