55005236 has 96 divisors (see below), whose sum is σ = 122266368. Its totient is φ = 21288960.

The previous prime is 55005229. The next prime is 55005239. The reversal of 55005236 is 63250055.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a plaindrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55005239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 486716 + ... + 486828.

It is an arithmetic number, because the mean of its divisors is an integer number (1273608).

Almost surely, 2^55005236 is an apocalyptic number.

It is an amenable number.

55005236 is an abundant number, since it is smaller than the sum of its proper divisors (67261132).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55005236 is a wasteful number, since it uses less digits than its factorization.

55005236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201 (or 199 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 55005236 is about 7416.5514897424. The cubic root of 55005236 is about 380.3073137290.

The spelling of 55005236 in words is "fifty-five million, five thousand, two hundred thirty-six".