49631 has 4 divisors (see below), whose sum is σ = 51264. Its totient is φ = 48000.

The previous prime is 49627. The next prime is 49633. The reversal of 49631 is 13694.

49631 = 24² + 25² + ... + 54².

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 49631 - 2² = 49627 is a prime.

It is a super-2 number, since 2×49631² = 4926472322, 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 = 49597 and 49606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49633) 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, 770 + ... + 831.

It is an arithmetic number, because the mean of its divisors is an integer number (12816).

2⁴⁹⁶³¹ is an apocalyptic number.

49631 is a deficient number, since it is larger than the sum of its proper divisors (1633).

49631 is a wasteful number, since it uses less digits than its factorization.

49631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1632.

The product of its digits is 648, while the sum is 23.

The square root of 49631 is about 222.7801606966. The cubic root of 49631 is about 36.7494639501.

Subtracting from 49631 its reverse (13694), we obtain a cube (35937 = 33³).

It can be divided in two parts, 496 and 31, that multiplied together give a square (15376 = 124²).

The spelling of 49631 in words is "forty-nine thousand, six hundred thirty-one".