49951431 has 8 divisors (see below), whose sum is σ = 74002160. Its totient is φ = 33300936.

The previous prime is 49951393. The next prime is 49951439. The reversal of 49951431 is 13415994.

It is a happy number.

It is not a de Polignac number, because 49951431 - 2¹³ = 49943239 is a prime.

It is a super-2 number, since 2×49951431² = 4990290917895522, 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 (49951439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 925000 + ... + 925053.

It is an arithmetic number, because the mean of its divisors is an integer number (9250270).

Almost surely, 2^49951431 is an apocalyptic number.

49951431 is a deficient number, since it is larger than the sum of its proper divisors (24050729).

49951431 is a wasteful number, since it uses less digits than its factorization.

49951431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1850062 (or 1850056 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 49951431 is about 7067.6326305206. The cubic root of 49951431 is about 368.2838247351.

The spelling of 49951431 in words is "forty-nine million, nine hundred fifty-one thousand, four hundred thirty-one".