70256481 has 4 divisors (see below), whose sum is σ = 93675312. Its totient is φ = 46837652.

The previous prime is 70256449. The next prime is 70256491. The reversal of 70256481 is 18465207.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 70256481 - 2⁵ = 70256449 is a prime.

It is a super-2 number, since 2×70256481² = 9871946245006722, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (70256491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11709411 + ... + 11709416.

It is an arithmetic number, because the mean of its divisors is an integer number (23418828).

Almost surely, 2^70256481 is an apocalyptic number.

It is an amenable number.

70256481 is a deficient number, since it is larger than the sum of its proper divisors (23418831).

70256481 is a wasteful number, since it uses less digits than its factorization.

70256481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23418830.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 70256481 is about 8381.9139222495. The cubic root of 70256481 is about 412.6312647446.

The spelling of 70256481 in words is "seventy million, two hundred fifty-six thousand, four hundred eighty-one".