49902516 has 18 divisors (see below), whose sum is σ = 126142562. Its totient is φ = 16634160.

The previous prime is 49902487. The next prime is 49902527. The reversal of 49902516 is 61520994.

It can be written as a sum of positive squares in only one way, i.e., 39012516 + 10890000 = 6246^2 + 3300^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×49902516² = 4980522206260512, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1386181 = 49902516 / (4 + 9 + 9 + 0 + 2 + 5 + 1 + 6).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 693055 + ... + 693126.

Almost surely, 2^49902516 is an apocalyptic number.

It is an amenable number.

49902516 is an abundant number, since it is smaller than the sum of its proper divisors (76240046).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

49902516 is a wasteful number, since it uses less digits than its factorization.

49902516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1386191 (or 1386186 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 49902516 is about 7064.1712889765. The cubic root of 49902516 is about 368.1635713450.

The spelling of 49902516 in words is "forty-nine million, nine hundred two thousand, five hundred sixteen".