49555631 has 2 divisors, whose sum is σ = 49555632. Its totient is φ = 49555630.

The previous prime is 49555621. The next prime is 49555699. The reversal of 49555631 is 13655594.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 49555631 - 2⁶ = 49555567 is a prime.

It is a super-2 number, since 2×49555631² = 4911521127616322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49555621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24777815 + 24777816.

It is an arithmetic number, because the mean of its divisors is an integer number (24777816).

Almost surely, 2^49555631 is an apocalyptic number.

49555631 is a deficient number, since it is larger than the sum of its proper divisors (1).

49555631 is an equidigital number, since it uses as much as digits as its factorization.

49555631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 81000, while the sum is 38.

The square root of 49555631 is about 7039.5760525759. The cubic root of 49555631 is about 367.3085210415.

The spelling of 49555631 in words is "forty-nine million, five hundred fifty-five thousand, six hundred thirty-one".