425325391 has 4 divisors (see below), whose sum is σ = 425418784. Its totient is φ = 425232000.

The previous prime is 425325377. The next prime is 425325409. The reversal of 425325391 is 193523524.

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 425325391 - 2⁵ = 425325359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425325311) 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, 39495 + ... + 49096.

It is an arithmetic number, because the mean of its divisors is an integer number (106354696).

Almost surely, 2^425325391 is an apocalyptic number.

425325391 is a deficient number, since it is larger than the sum of its proper divisors (93393).

425325391 is an equidigital number, since it uses as much as digits as its factorization.

425325391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93392.

The product of its digits is 32400, while the sum is 34.

The square root of 425325391 is about 20623.4185090639. The cubic root of 425325391 is about 752.0391270714.

The spelling of 425325391 in words is "four hundred twenty-five million, three hundred twenty-five thousand, three hundred ninety-one".