55003235 has 48 divisors (see below), whose sum is σ = 82342656. Its totient is φ = 35082432.

The previous prime is 55003231. The next prime is 55003261. The reversal of 55003235 is 53230055.

It is a happy number.

It is not a de Polignac number, because 55003235 - 2² = 55003231 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55003235.

It is not an unprimeable number, because it can be changed into a prime (55003231) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 242192 + ... + 242418.

It is an arithmetic number, because the mean of its divisors is an integer number (1715472).

Almost surely, 2^55003235 is an apocalyptic number.

55003235 is a deficient number, since it is larger than the sum of its proper divisors (27339421).

55003235 is a wasteful number, since it uses less digits than its factorization.

55003235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312 (or 305 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 23.

The square root of 55003235 is about 7416.4165875441. The cubic root of 55003235 is about 380.3027020216.

The spelling of 55003235 in words is "fifty-five million, three thousand, two hundred thirty-five".