164672425 has 12 divisors (see below), whose sum is σ = 205257820. Its totient is φ = 131051520.

The previous prime is 164672407. The next prime is 164672477. The reversal of 164672425 is 524276461.

164672425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 36348841 + 128323584 = 6029^2 + 11328^2 .

It is not a de Polignac number, because 164672425 - 2⁵ = 164672393 is a prime.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12240 + ... + 21889.

Almost surely, 2^164672425 is an apocalyptic number.

It is an amenable number.

164672425 is a deficient number, since it is larger than the sum of its proper divisors (40585395).

164672425 is a wasteful number, since it uses less digits than its factorization.

164672425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34332 (or 34327 counting only the distinct ones).

The product of its digits is 80640, while the sum is 37.

The square root of 164672425 is about 12832.4754042235. The cubic root of 164672425 is about 548.1174480093.

The spelling of 164672425 in words is "one hundred sixty-four million, six hundred seventy-two thousand, four hundred twenty-five".