56261143 has 16 divisors (see below), whose sum is σ = 62215776. Its totient is φ = 50652160.

The previous prime is 56261129. The next prime is 56261167. The reversal of 56261143 is 34116265.

It is a cyclic number.

It is not a de Polignac number, because 56261143 - 2⁵ = 56261111 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 (56261123) 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 + ... + 37702.

It is an arithmetic number, because the mean of its divisors is an integer number (3888486).

Almost surely, 2^56261143 is an apocalyptic number.

56261143 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

56261143 is a deficient number, since it is larger than the sum of its proper divisors (5954633).

56261143 is a wasteful number, since it uses less digits than its factorization.

56261143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1634.

The product of its digits is 4320, while the sum is 28.

The square root of 56261143 is about 7500.7428298803. The cubic root of 56261143 is about 383.1800152256.

The spelling of 56261143 in words is "fifty-six million, two hundred sixty-one thousand, one hundred forty-three".