56393645 has 16 divisors (see below), whose sum is σ = 84371328. Its totient is φ = 35154240.

The previous prime is 56393639. The next prime is 56393651. The reversal of 56393645 is 54639365.

It is an interprime number because it is at equal distance from previous prime (56393639) and next prime (56393651).

It is not a de Polignac number, because 56393645 - 2⁶ = 56393581 is a prime.

It is a super-3 number, since 3×56393645³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent 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, 72854 + ... + 73623.

It is an arithmetic number, because the mean of its divisors is an integer number (5273208).

Almost surely, 2^56393645 is an apocalyptic number.

56393645 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

56393645 is a deficient number, since it is larger than the sum of its proper divisors (27977683).

56393645 is a wasteful number, since it uses less digits than its factorization.

56393645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146500.

The product of its digits is 291600, while the sum is 41.

The square root of 56393645 is about 7509.5702273832. The cubic root of 56393645 is about 383.4805916063.

The spelling of 56393645 in words is "fifty-six million, three hundred ninety-three thousand, six hundred forty-five".