49163531 has 2 divisors, whose sum is σ = 49163532. Its totient is φ = 49163530.

The previous prime is 49163503. The next prime is 49163533. The reversal of 49163531 is 13536194.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49163531 is a prime.

It is a super-2 number, since 2×49163531² = 4834105560775922, which contains 22 as substring.

Together with 49163533, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (49163533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24581765 + 24581766.

It is an arithmetic number, because the mean of its divisors is an integer number (24581766).

Almost surely, 2^49163531 is an apocalyptic number.

49163531 is a deficient number, since it is larger than the sum of its proper divisors (1).

49163531 is an equidigital number, since it uses as much as digits as its factorization.

49163531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9720, while the sum is 32.

The square root of 49163531 is about 7011.6710561748. The cubic root of 49163531 is about 366.3372005595.

It can be divided in two parts, 49163 and 531, that added together give a palindrome (49694).

The spelling of 49163531 in words is "forty-nine million, one hundred sixty-three thousand, five hundred thirty-one".