49865431 has 24 divisors (see below), whose sum is σ = 63316512. Its totient is φ = 38438400.

The previous prime is 49865411. The next prime is 49865441. The reversal of 49865431 is 13456894.

It is not a de Polignac number, because 49865431 - 2⁵ = 49865399 is a prime.

It is a super-2 number, since 2×49865431² = 4973122417631522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49865401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 95451 + ... + 95971.

It is an arithmetic number, because the mean of its divisors is an integer number (2638188).

Almost surely, 2^49865431 is an apocalyptic number.

49865431 is a deficient number, since it is larger than the sum of its proper divisors (13451081).

49865431 is a wasteful number, since it uses less digits than its factorization.

49865431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663 (or 652 counting only the distinct ones).

The product of its digits is 103680, while the sum is 40.

The square root of 49865431 is about 7061.5459355583. The cubic root of 49865431 is about 368.0723486259.

The spelling of 49865431 in words is "forty-nine million, eight hundred sixty-five thousand, four hundred thirty-one".