70456561 has 12 divisors (see below), whose sum is σ = 83352240. Its totient is φ = 59365320.

The previous prime is 70456553. The next prime is 70456571. The reversal of 70456561 is 16565407.

It is a happy number.

It is not a de Polignac number, because 70456561 - 2³ = 70456553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70456511) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9295 + ... + 15076.

It is an arithmetic number, because the mean of its divisors is an integer number (6946020).

Almost surely, 2^70456561 is an apocalyptic number.

It is an amenable number.

70456561 is a deficient number, since it is larger than the sum of its proper divisors (12895679).

70456561 is a wasteful number, since it uses less digits than its factorization.

70456561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24444 (or 24437 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 70456561 is about 8393.8406584829. The cubic root of 70456561 is about 413.0225976336.

It can be divided in two parts, 70456 and 561, that added together give a palindrome (71017).

The spelling of 70456561 in words is "seventy million, four hundred fifty-six thousand, five hundred sixty-one".