70018425 has 60 divisors (see below), whose sum is σ = 131795136. Its totient is φ = 36741600.

The previous prime is 70018409. The next prime is 70018457. The reversal of 70018425 is 52481007.

It is not a de Polignac number, because 70018425 - 2⁴ = 70018409 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 143532 + ... + 144018.

Almost surely, 2^70018425 is an apocalyptic number.

70018425 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

70018425 is a deficient number, since it is larger than the sum of its proper divisors (61776711).

70018425 is a wasteful number, since it uses less digits than its factorization.

70018425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580 (or 566 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 70018425 is about 8367.7012972500. The cubic root of 70018425 is about 412.1646861810.

The spelling of 70018425 in words is "seventy million, eighteen thousand, four hundred twenty-five".