55233633 has 32 divisors (see below), whose sum is σ = 92512000. Its totient is φ = 29127168.

The previous prime is 55233631. The next prime is 55233671. The reversal of 55233633 is 33633255.

It is not a de Polignac number, because 55233633 - 2¹ = 55233631 is a prime.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 55233633.

It is not an unprimeable number, because it can be changed into a prime (55233631) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11313 + ... + 15441.

It is an arithmetic number, because the mean of its divisors is an integer number (2891000).

Almost surely, 2^55233633 is an apocalyptic number.

It is an amenable number.

55233633 is a deficient number, since it is larger than the sum of its proper divisors (37278367).

55233633 is a wasteful number, since it uses less digits than its factorization.

55233633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4166 (or 4152 counting only the distinct ones).

The product of its digits is 24300, while the sum is 30.

The square root of 55233633 is about 7431.9333285492. The cubic root of 55233633 is about 380.8329673376.

Adding to 55233633 its reverse (33633255), we get a palindrome (88866888).

The spelling of 55233633 in words is "fifty-five million, two hundred thirty-three thousand, six hundred thirty-three".