425381831 has 16 divisors (see below), whose sum is σ = 503841600. Its totient is φ = 351391488.

The previous prime is 425381821. The next prime is 425381851. The reversal of 425381831 is 138183524.

It is a happy number.

It is not a de Polignac number, because 425381831 - 2¹⁸ = 425119687 is a prime.

It is a super-2 number, since 2×425381831² = 361899404289825122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 425381791 and 425381800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425381821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130955 + ... + 134163.

It is an arithmetic number, because the mean of its divisors is an integer number (31490100).

Almost surely, 2^425381831 is an apocalyptic number.

425381831 is a deficient number, since it is larger than the sum of its proper divisors (78459769).

425381831 is a wasteful number, since it uses less digits than its factorization.

425381831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3898.

The product of its digits is 23040, while the sum is 35.

The square root of 425381831 is about 20624.7868110194. The cubic root of 425381831 is about 752.0723903971.

The spelling of 425381831 in words is "four hundred twenty-five million, three hundred eighty-one thousand, eight hundred thirty-one".