56072643 has 16 divisors (see below), whose sum is σ = 85107456. Its totient is φ = 32505440.

The previous prime is 56072641. The next prime is 56072651. The reversal of 56072643 is 34627065.

It is not a de Polignac number, because 56072643 - 2¹ = 56072641 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (56072641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36180 + ... + 37697.

It is an arithmetic number, because the mean of its divisors is an integer number (5319216).

Almost surely, 2^56072643 is an apocalyptic number.

56072643 is a deficient number, since it is larger than the sum of its proper divisors (29034813).

56072643 is a wasteful number, since it uses less digits than its factorization.

56072643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73914.

The product of its (nonzero) digits is 30240, while the sum is 33.

The square root of 56072643 is about 7488.1668651279. The cubic root of 56072643 is about 382.7515949075.

The spelling of 56072643 in words is "fifty-six million, seventy-two thousand, six hundred forty-three".