49972231 has 4 divisors (see below), whose sum is σ = 52911792. Its totient is φ = 47032672.

The previous prime is 49972229. The next prime is 49972253. The reversal of 49972231 is 13227994.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 49972231 - 2¹ = 49972229 is a prime.

It is a super-2 number, since 2×49972231² = 4994447742234722, 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 (49972331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1469755 + ... + 1469788.

It is an arithmetic number, because the mean of its divisors is an integer number (13227948).

Almost surely, 2^49972231 is an apocalyptic number.

49972231 is a deficient number, since it is larger than the sum of its proper divisors (2939561).

49972231 is a wasteful number, since it uses less digits than its factorization.

49972231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2939560.

The product of its digits is 27216, while the sum is 37.

The square root of 49972231 is about 7069.1039743379. The cubic root of 49972231 is about 368.3349359871.

Subtracting from 49972231 its product of digits (27216), we obtain a triangular number (49945015 = T₉₉₉₄).

The spelling of 49972231 in words is "forty-nine million, nine hundred seventy-two thousand, two hundred thirty-one".