71422625 has 8 divisors (see below), whose sum is σ = 89135592. Its totient is φ = 57138000.

The previous prime is 71422619. The next prime is 71422633. The reversal of 71422625 is 52622417.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 23078416 + 48344209 = 4804^2 + 6953^2 .

It is not a de Polignac number, because 71422625 - 2⁴ = 71422609 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 285566 + ... + 285815.

It is an arithmetic number, because the mean of its divisors is an integer number (11141949).

Almost surely, 2^71422625 is an apocalyptic number.

It is an amenable number.

71422625 is a deficient number, since it is larger than the sum of its proper divisors (17712967).

71422625 is an equidigital number, since it uses as much as digits as its factorization.

71422625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571396 (or 571386 counting only the distinct ones).

The product of its digits is 6720, while the sum is 29.

The square root of 71422625 is about 8451.1907445046. The cubic root of 71422625 is about 414.9017525204.

The spelling of 71422625 in words is "seventy-one million, four hundred twenty-two thousand, six hundred twenty-five".