55311355 has 8 divisors (see below), whose sum is σ = 72407664. Its totient is φ = 40226400.

The previous prime is 55311349. The next prime is 55311367.

55311355 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 55311355 - 2⁷ = 55311227 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 502776 + ... + 502885.

It is an arithmetic number, because the mean of its divisors is an integer number (9050958).

Almost surely, 2^55311355 is an apocalyptic number.

55311355 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55311355 is a deficient number, since it is larger than the sum of its proper divisors (17096309).

55311355 is a wasteful number, since it uses less digits than its factorization.

55311355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1005677.

The product of its digits is 5625, while the sum is 28.

The square root of 55311355 is about 7437.1604124155. The cubic root of 55311355 is about 381.0115133047.

It can be divided in two parts, 5531 and 1355, that added together give a palindrome (6886).

The spelling of 55311355 in words is "fifty-five million, three hundred eleven thousand, three hundred fifty-five".