54731431 has 4 divisors (see below), whose sum is σ = 54933664. Its totient is φ = 54529200.

The previous prime is 54731423. The next prime is 54731441. The reversal of 54731431 is 13413745.

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 54731431 - 2³ = 54731423 is a prime.

It is a super-2 number, since 2×54731431² = 5991059078615522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 54731431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54731401) 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, 100710 + ... + 101251.

It is an arithmetic number, because the mean of its divisors is an integer number (13733416).

Almost surely, 2^54731431 is an apocalyptic number.

54731431 is a deficient number, since it is larger than the sum of its proper divisors (202233).

54731431 is a wasteful number, since it uses less digits than its factorization.

54731431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202232.

The product of its digits is 5040, while the sum is 28.

The square root of 54731431 is about 7398.0694103259. The cubic root of 54731431 is about 379.6752326734.

The spelling of 54731431 in words is "fifty-four million, seven hundred thirty-one thousand, four hundred thirty-one".