70615025 has 24 divisors (see below), whose sum is σ = 99852984. Its totient is φ = 49075200.

The previous prime is 70615007. The next prime is 70615043. The reversal of 70615025 is 52051607.

It is an interprime number because it is at equal distance from previous prime (70615007) and next prime (70615043).

It can be written as a sum of positive squares in 12 ways, for example, as 13808656 + 56806369 = 3716^2 + 7537^2 .

It is not a de Polignac number, because 70615025 - 2⁸ = 70614769 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70614985 and 70615003.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 866 + ... + 11915.

It is an arithmetic number, because the mean of its divisors is an integer number (4160541).

Almost surely, 2^70615025 is an apocalyptic number.

It is an amenable number.

70615025 is a deficient number, since it is larger than the sum of its proper divisors (29237959).

70615025 is a wasteful number, since it uses less digits than its factorization.

70615025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12821 (or 12816 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 70615025 is about 8403.2746593218. The cubic root of 70615025 is about 413.3320091153.

The spelling of 70615025 in words is "seventy million, six hundred fifteen thousand, twenty-five".