52788431 has 2 divisors, whose sum is σ = 52788432. Its totient is φ = 52788430.

The previous prime is 52788419. The next prime is 52788487. The reversal of 52788431 is 13488725.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 52788431 - 2⁶ = 52788367 is a prime.

It is a super-2 number, since 2×52788431² = 5573236894883522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52788401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26394215 + 26394216.

It is an arithmetic number, because the mean of its divisors is an integer number (26394216).

Almost surely, 2^52788431 is an apocalyptic number.

52788431 is a deficient number, since it is larger than the sum of its proper divisors (1).

52788431 is an equidigital number, since it uses as much as digits as its factorization.

52788431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 53760, while the sum is 38.

The square root of 52788431 is about 7265.5647406103. The cubic root of 52788431 is about 375.1280889843.

The spelling of 52788431 in words is "fifty-two million, seven hundred eighty-eight thousand, four hundred thirty-one".