55811353 has 8 divisors (see below), whose sum is σ = 60196808. Its totient is φ = 51439104.

The previous prime is 55811333. The next prime is 55811359. The reversal of 55811353 is 35311855.

It can be written as a sum of positive squares in 4 ways, for example, as 28217344 + 27594009 = 5312^2 + 5253^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 55811353 - 2⁵ = 55811321 is a prime.

It is a super-2 number, since 2×55811353² = 6229814247381218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55811359) 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, 6601 + ... + 12457.

It is an arithmetic number, because the mean of its divisors is an integer number (7524601).

Almost surely, 2^55811353 is an apocalyptic number.

It is an amenable number.

55811353 is a deficient number, since it is larger than the sum of its proper divisors (4385455).

55811353 is a wasteful number, since it uses less digits than its factorization.

55811353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6603.

The product of its digits is 9000, while the sum is 31.

The square root of 55811353 is about 7470.6996325645. The cubic root of 55811353 is about 382.1561476164.

It can be divided in two parts, 558 and 11353, that added together give a palindrome (11911).

The spelling of 55811353 in words is "fifty-five million, eight hundred eleven thousand, three hundred fifty-three".