631070425 has 12 divisors (see below), whose sum is σ = 788161360. Its totient is φ = 501221520.

The previous prime is 631070423. The next prime is 631070443. The reversal of 631070425 is 524070136.

It is not a de Polignac number, because 631070425 - 2¹ = 631070423 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 631070393 and 631070402.

It is not an unprimeable number, because it can be changed into a prime (631070423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 87327 + ... + 94276.

Almost surely, 2^631070425 is an apocalyptic number.

It is an amenable number.

631070425 is a deficient number, since it is larger than the sum of its proper divisors (157090935).

631070425 is a wasteful number, since it uses less digits than its factorization.

631070425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181752 (or 181747 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 631070425 is about 25121.1151225418. The cubic root of 631070425 is about 857.7471344393.

The spelling of 631070425 in words is "six hundred thirty-one million, seventy thousand, four hundred twenty-five".