70251564 has 12 divisors (see below), whose sum is σ = 163920344. Its totient is φ = 23417184.

The previous prime is 70251547. The next prime is 70251617. The reversal of 70251564 is 46515207.

It is a tau number, because it is divible by the number of its divisors (12).

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, 2927137 + ... + 2927160.

Almost surely, 2^70251564 is an apocalyptic number.

It is an amenable number.

70251564 is an abundant number, since it is smaller than the sum of its proper divisors (93668780).

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

70251564 is a wasteful number, since it uses less digits than its factorization.

70251564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5854304 (or 5854302 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 70251564 is about 8381.6206070187. The cubic root of 70251564 is about 412.6216383242.

The spelling of 70251564 in words is "seventy million, two hundred fifty-one thousand, five hundred sixty-four".