49512638 has 12 divisors (see below), whose sum is σ = 86394672. Its totient is φ = 21219660.

The previous prime is 49512637. The next prime is 49512641. The reversal of 49512638 is 83621594.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49512637) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 252518 + ... + 252713.

It is an arithmetic number, because the mean of its divisors is an integer number (7199556).

Almost surely, 2^49512638 is an apocalyptic number.

49512638 is a deficient number, since it is larger than the sum of its proper divisors (36882034).

49512638 is a wasteful number, since it uses less digits than its factorization.

49512638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505247 (or 505240 counting only the distinct ones).

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

The square root of 49512638 is about 7036.5217259666. The cubic root of 49512638 is about 367.2022683048.

The spelling of 49512638 in words is "forty-nine million, five hundred twelve thousand, six hundred thirty-eight".