55573331 has 8 divisors (see below), whose sum is σ = 61226928. Its totient is φ = 50020000.

The previous prime is 55573321. The next prime is 55573361. The reversal of 55573331 is 13337555.

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 55573331 - 2¹⁴ = 55556947 is a prime.

It is a super-2 number, since 2×55573331² = 6176790236871122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55573321) 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, 23900 + ... + 26121.

It is an arithmetic number, because the mean of its divisors is an integer number (7653366).

Almost surely, 2^55573331 is an apocalyptic number.

55573331 is a deficient number, since it is larger than the sum of its proper divisors (5653597).

55573331 is a wasteful number, since it uses less digits than its factorization.

55573331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50133.

The product of its digits is 23625, while the sum is 32.

The square root of 55573331 is about 7454.7522426973. The cubic root of 55573331 is about 381.6121054538.

It can be divided in two parts, 5557 and 3331, that added together give a palindrome (8888).

The spelling of 55573331 in words is "fifty-five million, five hundred seventy-three thousand, three hundred thirty-one".