55036830 has 32 divisors (see below), whose sum is σ = 133457184. Its totient is φ = 14524416.

The previous prime is 55036789. The next prime is 55036879. The reversal of 55036830 is 3863055.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6547 + ... + 12366.

It is an arithmetic number, because the mean of its divisors is an integer number (4170537).

Almost surely, 2^55036830 is an apocalyptic number.

55036830 is an abundant number, since it is smaller than the sum of its proper divisors (78420354).

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

55036830 is a wasteful number, since it uses less digits than its factorization.

55036830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19020.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 55036830 is about 7418.6811496384. The cubic root of 55036830 is about 380.3801136441.

Adding to 55036830 its reverse (3863055), we get a palindrome (58899885).

The spelling of 55036830 in words is "fifty-five million, thirty-six thousand, eight hundred thirty".