425172477 has 8 divisors (see below), whose sum is σ = 567144064. Its totient is φ = 283324608.

The previous prime is 425172359. The next prime is 425172497. The reversal of 425172477 is 774271524.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 425172477 - 2¹⁵ = 425139709 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 (425172497) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22588 + ... + 36885.

It is an arithmetic number, because the mean of its divisors is an integer number (70893008).

Almost surely, 2^425172477 is an apocalyptic number.

It is an amenable number.

425172477 is a deficient number, since it is larger than the sum of its proper divisors (141971587).

425172477 is a wasteful number, since it uses less digits than its factorization.

425172477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61859.

The product of its digits is 109760, while the sum is 39.

The square root of 425172477 is about 20619.7108854610. The cubic root of 425172477 is about 751.9489913011.

The spelling of 425172477 in words is "four hundred twenty-five million, one hundred seventy-two thousand, four hundred seventy-seven".