49717531 has 2 divisors, whose sum is σ = 49717532. Its totient is φ = 49717530.

The previous prime is 49717523. The next prime is 49717597. The reversal of 49717531 is 13571794.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 49717531 - 2³ = 49717523 is a prime.

It is a super-2 number, since 2×49717531² = 4943665777471922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (49717511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24858765 + 24858766.

It is an arithmetic number, because the mean of its divisors is an integer number (24858766).

Almost surely, 2^49717531 is an apocalyptic number.

49717531 is a deficient number, since it is larger than the sum of its proper divisors (1).

49717531 is an equidigital number, since it uses as much as digits as its factorization.

49717531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26460, while the sum is 37.

The square root of 49717531 is about 7051.0659477841. The cubic root of 49717531 is about 367.7080895339.

The spelling of 49717531 in words is "forty-nine million, seven hundred seventeen thousand, five hundred thirty-one".