49751399 has 2 divisors, whose sum is σ = 49751400. Its totient is φ = 49751398.

The previous prime is 49751389. The next prime is 49751419. The reversal of 49751399 is 99315794.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 49751399 - 2¹⁶ = 49685863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49751389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24875699 + 24875700.

It is an arithmetic number, because the mean of its divisors is an integer number (24875700).

Almost surely, 2^49751399 is an apocalyptic number.

49751399 is a deficient number, since it is larger than the sum of its proper divisors (1).

49751399 is an equidigital number, since it uses as much as digits as its factorization.

49751399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 306180, while the sum is 47.

The square root of 49751399 is about 7053.4671616163. The cubic root of 49751399 is about 367.7915658623.

The spelling of 49751399 in words is "forty-nine million, seven hundred fifty-one thousand, three hundred ninety-nine".