70250920 has 16 divisors (see below), whose sum is σ = 158064660. Its totient is φ = 28100352.

The previous prime is 70250909. The next prime is 70250933. The reversal of 70250920 is 2905207.

It can be written as a sum of positive squares in 2 ways, for example, as 68194564 + 2056356 = 8258^2 + 1434^2 .

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, 878097 + ... + 878176.

Almost surely, 2^70250920 is an apocalyptic number.

It is an amenable number.

70250920 is an abundant number, since it is smaller than the sum of its proper divisors (87813740).

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

70250920 is a wasteful number, since it uses less digits than its factorization.

70250920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1756284 (or 1756280 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 70250920 is about 8381.5821895392. The cubic root of 70250920 is about 412.6203774785.

The spelling of 70250920 in words is "seventy million, two hundred fifty thousand, nine hundred twenty".