55501233 has 8 divisors (see below), whose sum is σ = 74052000. Its totient is φ = 36975648.

The previous prime is 55501211. The next prime is 55501267. The reversal of 55501233 is 33210555.

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

It is not a de Polignac number, because 55501233 - 2¹⁰ = 55500209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55501333) 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, 348 + ... + 10541.

It is an arithmetic number, because the mean of its divisors is an integer number (9256500).

Almost surely, 2^55501233 is an apocalyptic number.

It is an amenable number.

55501233 is a deficient number, since it is larger than the sum of its proper divisors (18550767).

55501233 is a wasteful number, since it uses less digits than its factorization.

55501233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12591.

The product of its (nonzero) digits is 2250, while the sum is 24.

The square root of 55501233 is about 7449.9149659577. The cubic root of 55501233 is about 381.4470060205.

Adding to 55501233 its reverse (33210555), we get a palindrome (88711788).

It can be divided in two parts, 5550 and 1233, that multiplied together give a triangular number (6843150 = T₃₆₉₉).

The spelling of 55501233 in words is "fifty-five million, five hundred one thousand, two hundred thirty-three".