49938431 has 2 divisors, whose sum is σ = 49938432. Its totient is φ = 49938430.

The previous prime is 49938409. The next prime is 49938433. The reversal of 49938431 is 13483994.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49938431 is a prime.

It is a super-2 number, since 2×49938431² = 4987693781483522, which contains 22 as substring.

Together with 49938433, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49938433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24969215 + 24969216.

It is an arithmetic number, because the mean of its divisors is an integer number (24969216).

Almost surely, 2^49938431 is an apocalyptic number.

49938431 is a deficient number, since it is larger than the sum of its proper divisors (1).

49938431 is an equidigital number, since it uses as much as digits as its factorization.

49938431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 93312, while the sum is 41.

The square root of 49938431 is about 7066.7128850690. The cubic root of 49938431 is about 368.2518729970.

The spelling of 49938431 in words is "forty-nine million, nine hundred thirty-eight thousand, four hundred thirty-one".