49403957 has 2 divisors, whose sum is σ = 49403958. Its totient is φ = 49403956.

The previous prime is 49403953. The next prime is 49403969. The reversal of 49403957 is 75930494.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29964676 + 19439281 = 5474^2 + 4409^2 .

It is a cyclic number.

It is not a de Polignac number, because 49403957 - 2² = 49403953 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49403951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24701978 + 24701979.

It is an arithmetic number, because the mean of its divisors is an integer number (24701979).

Almost surely, 2^49403957 is an apocalyptic number.

It is an amenable number.

49403957 is a deficient number, since it is larger than the sum of its proper divisors (1).

49403957 is an equidigital number, since it uses as much as digits as its factorization.

49403957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 49403957 is about 7028.7948469137. The cubic root of 49403957 is about 366.9333999479.

The spelling of 49403957 in words is "forty-nine million, four hundred three thousand, nine hundred fifty-seven".