425351647 has 4 divisors (see below), whose sum is σ = 486116176. Its totient is φ = 364587120.

The previous prime is 425351639. The next prime is 425351687. The reversal of 425351647 is 746153524.

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 425351647 - 2³ = 425351639 is a prime.

It is a super-2 number, since 2×425351647² = 361848047211225218, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425351687) 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, 30382254 + ... + 30382267.

It is an arithmetic number, because the mean of its divisors is an integer number (121529044).

Almost surely, 2^425351647 is an apocalyptic number.

425351647 is a deficient number, since it is larger than the sum of its proper divisors (60764529).

425351647 is an equidigital number, since it uses as much as digits as its factorization.

425351647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60764528.

The product of its digits is 100800, while the sum is 37.

The square root of 425351647 is about 20624.0550571414. The cubic root of 425351647 is about 752.0546016026.

The spelling of 425351647 in words is "four hundred twenty-five million, three hundred fifty-one thousand, six hundred forty-seven".