56551101 has 8 divisors (see below), whose sum is σ = 75571200. Its totient is φ = 37615872.

The previous prime is 56551091. The next prime is 56551109. The reversal of 56551101 is 10115565.

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

It is not a de Polignac number, because 56551101 - 2¹⁵ = 56518333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56551109) 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, 19645 + ... + 22338.

It is an arithmetic number, because the mean of its divisors is an integer number (9446400).

Almost surely, 2^56551101 is an apocalyptic number.

It is an amenable number.

56551101 is a deficient number, since it is larger than the sum of its proper divisors (19020099).

56551101 is a wasteful number, since it uses less digits than its factorization.

56551101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42435.

The product of its (nonzero) digits is 750, while the sum is 24.

The square root of 56551101 is about 7520.0466088981. The cubic root of 56551101 is about 383.8371637603.

Adding to 56551101 its reverse (10115565), we get a palindrome (66666666).

The spelling of 56551101 in words is "fifty-six million, five hundred fifty-one thousand, one hundred one".