425727331 has 2 divisors, whose sum is σ = 425727332. Its totient is φ = 425727330.

The previous prime is 425727283. The next prime is 425727359. The reversal of 425727331 is 133727524.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 425727331 - 2²³ = 417338723 is a prime.

It is a super-2 number, since 2×425727331² = 362487520720767122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (425727361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212863665 + 212863666.

It is an arithmetic number, because the mean of its divisors is an integer number (212863666).

Almost surely, 2^425727331 is an apocalyptic number.

425727331 is a deficient number, since it is larger than the sum of its proper divisors (1).

425727331 is an equidigital number, since it uses as much as digits as its factorization.

425727331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 35280, while the sum is 34.

The square root of 425727331 is about 20633.1609551227. The cubic root of 425727331 is about 752.2759492353.

The spelling of 425727331 in words is "four hundred twenty-five million, seven hundred twenty-seven thousand, three hundred thirty-one".