54788431 has 4 divisors (see below), whose sum is σ = 55686664. Its totient is φ = 53890200.

The previous prime is 54788429. The next prime is 54788443. The reversal of 54788431 is 13488745.

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 54788431 - 2¹ = 54788429 is a prime.

It is a super-2 number, since 2×54788431² = 6003544342883522, 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 (54788401) 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, 449025 + ... + 449146.

It is an arithmetic number, because the mean of its divisors is an integer number (13921666).

Almost surely, 2^54788431 is an apocalyptic number.

54788431 is a deficient number, since it is larger than the sum of its proper divisors (898233).

54788431 is an equidigital number, since it uses as much as digits as its factorization.

54788431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 898232.

The product of its digits is 107520, while the sum is 40.

The square root of 54788431 is about 7401.9207642341. The cubic root of 54788431 is about 379.8069910882.

The spelling of 54788431 in words is "fifty-four million, seven hundred eighty-eight thousand, four hundred thirty-one".