56615430 has 16 divisors (see below), whose sum is σ = 135877104. Its totient is φ = 15097440.

The previous prime is 56615417. The next prime is 56615431. The reversal of 56615430 is 3451665.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 1887181 = 56615430 / (5 + 6 + 6 + 1 + 5 + 4 + 3 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56615431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 943561 + ... + 943620.

It is an arithmetic number, because the mean of its divisors is an integer number (8492319).

Almost surely, 2^56615430 is an apocalyptic number.

56615430 is an abundant number, since it is smaller than the sum of its proper divisors (79261674).

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

56615430 is a wasteful number, since it uses less digits than its factorization.

56615430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1887191.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 56615430 is about 7524.3225608689. The cubic root of 56615430 is about 383.9826516685.

The spelling of 56615430 in words is "fifty-six million, six hundred fifteen thousand, four hundred thirty".