70518530 has 8 divisors (see below), whose sum is σ = 126933372. Its totient is φ = 28207408.

The previous prime is 70518523. The next prime is 70518541. The reversal of 70518530 is 3581507.

It can be written as a sum of positive squares in 2 ways, for example, as 70073641 + 444889 = 8371^2 + 667^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 70518493 and 70518502.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3525917 + ... + 3525936.

Almost surely, 2^70518530 is an apocalyptic number.

70518530 is a deficient number, since it is larger than the sum of its proper divisors (56414842).

70518530 is a wasteful number, since it uses less digits than its factorization.

70518530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7051860.

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 70518530 is about 8397.5311848185. The cubic root of 70518530 is about 413.1436514048.

The spelling of 70518530 in words is "seventy million, five hundred eighteen thousand, five hundred thirty".