56072111 has 4 divisors (see below), whose sum is σ = 56650272. Its totient is φ = 55493952.

The previous prime is 56072101. The next prime is 56072113. The reversal of 56072111 is 11127065.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56072111 - 2¹⁸ = 55809967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56072113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 288935 + ... + 289128.

It is an arithmetic number, because the mean of its divisors is an integer number (14162568).

Almost surely, 2^56072111 is an apocalyptic number.

56072111 is a deficient number, since it is larger than the sum of its proper divisors (578161).

56072111 is an equidigital number, since it uses as much as digits as its factorization.

56072111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 578160.

The product of its (nonzero) digits is 420, while the sum is 23.

The square root of 56072111 is about 7488.1313423310. The cubic root of 56072111 is about 382.7503844272.

Adding to 56072111 its reverse (11127065), we get a palindrome (67199176).

The spelling of 56072111 in words is "fifty-six million, seventy-two thousand, one hundred eleven".