70472225 has 12 divisors (see below), whose sum is σ = 92526444. Its totient is φ = 53061120.

The previous prime is 70472221. The next prime is 70472239. The reversal of 70472225 is 52227407.

It can be written as a sum of positive squares in 6 ways, for example, as 5121169 + 65351056 = 2263^2 + 8084^2 .

It is not a de Polignac number, because 70472225 - 2² = 70472221 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70472221) 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, 82484 + ... + 83333.

It is an arithmetic number, because the mean of its divisors is an integer number (7710537).

Almost surely, 2^70472225 is an apocalyptic number.

It is an amenable number.

70472225 is a deficient number, since it is larger than the sum of its proper divisors (22054219).

70472225 is a wasteful number, since it uses less digits than its factorization.

70472225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165844 (or 165839 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 29.

The square root of 70472225 is about 8394.7736717555. The cubic root of 70472225 is about 413.0532032838.

The spelling of 70472225 in words is "seventy million, four hundred seventy-two thousand, two hundred twenty-five".