56743553 has 8 divisors (see below), whose sum is σ = 59640000. Its totient is φ = 53882928.

The previous prime is 56743543. The next prime is 56743579. The reversal of 56743553 is 35534765.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 56743553 - 2¹⁸ = 56481409 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56743543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5678 + ... + 12071.

It is an arithmetic number, because the mean of its divisors is an integer number (7455000).

Almost surely, 2^56743553 is an apocalyptic number.

It is an amenable number.

56743553 is a deficient number, since it is larger than the sum of its proper divisors (2896447).

56743553 is a wasteful number, since it uses less digits than its factorization.

56743553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17911.

The product of its digits is 189000, while the sum is 38.

The square root of 56743553 is about 7532.8316720872. The cubic root of 56743553 is about 384.2720895141.

The spelling of 56743553 in words is "fifty-six million, seven hundred forty-three thousand, five hundred fifty-three".