56349618 has 16 divisors (see below), whose sum is σ = 121368576. Its totient is φ = 17338320.

The previous prime is 56349593. The next prime is 56349637. The reversal of 56349618 is 81694365.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 56349618.

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, 361138 + ... + 361293.

It is an arithmetic number, because the mean of its divisors is an integer number (7585536).

Almost surely, 2^56349618 is an apocalyptic number.

56349618 is an abundant number, since it is smaller than the sum of its proper divisors (65018958).

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

56349618 is a wasteful number, since it uses less digits than its factorization.

56349618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722449.

The product of its digits is 155520, while the sum is 42.

The square root of 56349618 is about 7506.6382622316. The cubic root of 56349618 is about 383.3807701010.

The spelling of 56349618 in words is "fifty-six million, three hundred forty-nine thousand, six hundred eighteen".