56143725 has 24 divisors (see below), whose sum is σ = 101264352. Its totient is φ = 27220800.

The previous prime is 56143723. The next prime is 56143733. The reversal of 56143725 is 52734165.

It is not a de Polignac number, because 56143725 - 2¹ = 56143723 is a prime.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56143721) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33202 + ... + 34851.

It is an arithmetic number, because the mean of its divisors is an integer number (4219348).

Almost surely, 2^56143725 is an apocalyptic number.

56143725 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

56143725 is a deficient number, since it is larger than the sum of its proper divisors (45120627).

56143725 is a wasteful number, since it uses less digits than its factorization.

56143725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68077 (or 68072 counting only the distinct ones).

The product of its digits is 25200, while the sum is 33.

The square root of 56143725 is about 7492.9116503533. The cubic root of 56143725 is about 382.9132617445.

It can be divided in two parts, 5614 and 3725, that added together give a palindrome (9339).

The spelling of 56143725 in words is "fifty-six million, one hundred forty-three thousand, seven hundred twenty-five".