56120305 has 16 divisors (see below), whose sum is σ = 70312464. Its totient is φ = 42958080.

The previous prime is 56120297. The next prime is 56120321. The reversal of 56120305 is 50302165.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 274576 + 55845729 = 524^2 + 7473^2 .

It is not a de Polignac number, because 56120305 - 2³ = 56120297 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8799 + ... + 13771.

It is an arithmetic number, because the mean of its divisors is an integer number (4394529).

Almost surely, 2^56120305 is an apocalyptic number.

It is an amenable number.

56120305 is a deficient number, since it is larger than the sum of its proper divisors (14192159).

56120305 is a wasteful number, since it uses less digits than its factorization.

56120305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5076.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 56120305 is about 7491.3486769740. The cubic root of 56120305 is about 382.8600110572.

The spelling of 56120305 in words is "fifty-six million, one hundred twenty thousand, three hundred five".