50551431 has 8 divisors (see below), whose sum is σ = 77030784. Its totient is φ = 28886520.

The previous prime is 50551429. The next prime is 50551439. The reversal of 50551431 is 13415505.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 50551431 - 2¹ = 50551429 is a prime.

It is a super-2 number, since 2×50551431² = 5110894352295522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50551439) 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, 1203585 + ... + 1203626.

It is an arithmetic number, because the mean of its divisors is an integer number (9628848).

Almost surely, 2^50551431 is an apocalyptic number.

50551431 is a deficient number, since it is larger than the sum of its proper divisors (26479353).

50551431 is a wasteful number, since it uses less digits than its factorization.

50551431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2407221.

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 50551431 is about 7109.9529534308. The cubic root of 50551431 is about 369.7525274795.

Adding to 50551431 its reverse (13415505), we get a palindrome (63966936).

The spelling of 50551431 in words is "fifty million, five hundred fifty-one thousand, four hundred thirty-one".