49863131 has 4 divisors (see below), whose sum is σ = 49895952. Its totient is φ = 49830312.

The previous prime is 49863127. The next prime is 49863133. The reversal of 49863131 is 13136894.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13136894 = 2 ⋅6568447.

It is a cyclic number.

It is not a de Polignac number, because 49863131 - 2² = 49863127 is a prime.

It is a super-2 number, since 2×49863131² = 4972663666246322, 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 = 49863091 and 49863100.

It is not an unprimeable number, because it can be changed into a prime (49863133) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 14015 + ... + 17208.

It is an arithmetic number, because the mean of its divisors is an integer number (12473988).

Almost surely, 2^49863131 is an apocalyptic number.

49863131 is a deficient number, since it is larger than the sum of its proper divisors (32821).

49863131 is a wasteful number, since it uses less digits than its factorization.

49863131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32820.

The product of its digits is 15552, while the sum is 35.

The square root of 49863131 is about 7061.3830798223. The cubic root of 49863131 is about 368.0666895323.

It can be divided in two parts, 49863 and 131, that added together give a palindrome (49994).

The spelling of 49863131 in words is "forty-nine million, eight hundred sixty-three thousand, one hundred thirty-one".