56742305 has 8 divisors (see below), whose sum is σ = 68765544. Its totient is φ = 44944000.

The previous prime is 56742293. The next prime is 56742313. The reversal of 56742305 is 50324765.

It can be written as a sum of positive squares in 4 ways, for example, as 7349521 + 49392784 = 2711^2 + 7028^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 56742305 - 2⁴ = 56742289 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55676 + ... + 56685.

It is an arithmetic number, because the mean of its divisors is an integer number (8595693).

Almost surely, 2^56742305 is an apocalyptic number.

It is an amenable number.

56742305 is a deficient number, since it is larger than the sum of its proper divisors (12023239).

56742305 is a wasteful number, since it uses less digits than its factorization.

56742305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112467.

The product of its (nonzero) digits is 25200, while the sum is 32.

The square root of 56742305 is about 7532.7488342570. The cubic root of 56742305 is about 384.2692723067.

The spelling of 56742305 in words is "fifty-six million, seven hundred forty-two thousand, three hundred five".