49217631 has 12 divisors (see below), whose sum is σ = 68602968. Its totient is φ = 31384144.

The previous prime is 49217629. The next prime is 49217639. The reversal of 49217631 is 13671294.

It is not a de Polignac number, because 49217631 - 2¹ = 49217629 is a prime.

It is a super-2 number, since 2×49217631² = 4844750402504322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 49217592 and 49217601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49217639) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13920 + ... + 17093.

It is an arithmetic number, because the mean of its divisors is an integer number (5716914).

Almost surely, 2^49217631 is an apocalyptic number.

49217631 is a deficient number, since it is larger than the sum of its proper divisors (19385337).

49217631 is a wasteful number, since it uses less digits than its factorization.

49217631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31062 (or 31039 counting only the distinct ones).

The product of its digits is 9072, while the sum is 33.

The square root of 49217631 is about 7015.5278489933. The cubic root of 49217631 is about 366.4715249050.

The spelling of 49217631 in words is "forty-nine million, two hundred seventeen thousand, six hundred thirty-one".