70023425 has 48 divisors (see below), whose sum is σ = 97283952. Its totient is φ = 49766400.

The previous prime is 70023409. The next prime is 70023433. The reversal of 70023425 is 52432007.

It is a Cunningham number, because it is equal to 8368²+1.

It can be written as a sum of positive squares in 24 ways, for example, as 37442161 + 32581264 = 6119^2 + 5708^2 .

It is not a de Polignac number, because 70023425 - 2⁴ = 70023409 is a prime.

It is a super-3 number, since 3×70023425³ (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 70023425.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 959189 + ... + 959261.

It is an arithmetic number, because the mean of its divisors is an integer number (2026749).

Almost surely, 2^70023425 is an apocalyptic number.

It is an amenable number.

70023425 is a deficient number, since it is larger than the sum of its proper divisors (27260527).

70023425 is a wasteful number, since it uses less digits than its factorization.

70023425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198 (or 193 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 70023425 is about 8368.0000597514. Note that the first 4 decimals coincide. The cubic root of 70023425 is about 412.1744968100.

The spelling of 70023425 in words is "seventy million, twenty-three thousand, four hundred twenty-five".