49911399 has 12 divisors (see below), whose sum is σ = 72555496. Its totient is φ = 33061392.

The previous prime is 49911397. The next prime is 49911401. The reversal of 49911399 is 99311994.

It is an interprime number because it is at equal distance from previous prime (49911397) and next prime (49911401).

It is not a de Polignac number, because 49911399 - 2¹ = 49911397 is a prime.

It is a super-2 number, since 2×49911399² = 4982295500274402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49911397) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16249 + ... + 19074.

Almost surely, 2^49911399 is an apocalyptic number.

49911399 is a deficient number, since it is larger than the sum of its proper divisors (22644097).

49911399 is a wasteful number, since it uses less digits than its factorization.

49911399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35486 (or 35483 counting only the distinct ones).

The product of its digits is 78732, while the sum is 45.

The square root of 49911399 is about 7064.7999971691. The cubic root of 49911399 is about 368.1854152868.

The spelling of 49911399 in words is "forty-nine million, nine hundred eleven thousand, three hundred ninety-nine".