70500520 has 32 divisors (see below), whose sum is σ = 165525120. Its totient is φ = 26973760.

The previous prime is 70500511. The next prime is 70500523. The reversal of 70500520 is 2500507.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (70500523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37396 + ... + 39235.

It is an arithmetic number, because the mean of its divisors is an integer number (5172660).

Almost surely, 2^70500520 is an apocalyptic number.

It is an amenable number.

70500520 is an abundant number, since it is smaller than the sum of its proper divisors (95024600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70500520 is a wasteful number, since it uses less digits than its factorization.

70500520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76665 (or 76661 counting only the distinct ones).

The product of its (nonzero) digits is 350, while the sum is 19.

The square root of 70500520 is about 8396.4587773656. The cubic root of 70500520 is about 413.1084769587.

The spelling of 70500520 in words is "seventy million, five hundred thousand, five hundred twenty".