70625025 has 18 divisors (see below), whose sum is σ = 126497670. Its totient is φ = 37666560.

The previous prime is 70625017. The next prime is 70625077. The reversal of 70625025 is 52052607.

It can be written as a sum of positive squares in 3 ways, for example, as 23386896 + 47238129 = 4836^2 + 6873^2 .

It is not a de Polignac number, because 70625025 - 2³ = 70625017 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 70625025.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 156720 + ... + 157169.

Almost surely, 2^70625025 is an apocalyptic number.

70625025 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

70625025 is a deficient number, since it is larger than the sum of its proper divisors (55872645).

70625025 is a wasteful number, since it uses less digits than its factorization.

70625025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313905 (or 313897 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 70625025 is about 8403.8696443960. The cubic root of 70625025 is about 413.3515192455.

The spelling of 70625025 in words is "seventy million, six hundred twenty-five thousand, twenty-five".