49425991 has 2 divisors, whose sum is σ = 49425992. Its totient is φ = 49425990.

The previous prime is 49425979. The next prime is 49426007. The reversal of 49425991 is 19952494.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 49425991 - 2⁷ = 49425863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49425931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24712995 + 24712996.

It is an arithmetic number, because the mean of its divisors is an integer number (24712996).

Almost surely, 2^49425991 is an apocalyptic number.

49425991 is a deficient number, since it is larger than the sum of its proper divisors (1).

49425991 is an equidigital number, since it uses as much as digits as its factorization.

49425991 is an evil number, because the sum of its binary digits is even.

The product of its digits is 116640, while the sum is 43.

The square root of 49425991 is about 7030.3620817139. The cubic root of 49425991 is about 366.9879421975.

The spelling of 49425991 in words is "forty-nine million, four hundred twenty-five thousand, nine hundred ninety-one".