56765553 has 8 divisors (see below), whose sum is σ = 81509568. Its totient is φ = 34932624.

The previous prime is 56765543. The next prime is 56765591. The reversal of 56765553 is 35556765.

It is a happy number.

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

It is not a de Polignac number, because 56765553 - 2¹³ = 56757361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56765503) 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, 727725 + ... + 727802.

It is an arithmetic number, because the mean of its divisors is an integer number (10188696).

Almost surely, 2^56765553 is an apocalyptic number.

It is an amenable number.

56765553 is a deficient number, since it is larger than the sum of its proper divisors (24744015).

56765553 is a wasteful number, since it uses less digits than its factorization.

56765553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1455543.

The product of its digits is 472500, while the sum is 42.

The square root of 56765553 is about 7534.2918048082. The cubic root of 56765553 is about 384.3217450444.

The spelling of 56765553 in words is "fifty-six million, seven hundred sixty-five thousand, five hundred fifty-three".