55365000 has 80 divisors (see below), whose sum is σ = 173007120. Its totient is φ = 14760000.

The previous prime is 55364989. The next prime is 55365007. The reversal of 55365000 is 56355.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (55365007) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 13155 + ... + 16845.

It is an arithmetic number, because the mean of its divisors is an integer number (2162589).

Almost surely, 2^55365000 is an apocalyptic number.

55365000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55365000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86503560).

55365000 is an abundant number, since it is smaller than the sum of its proper divisors (117642120).

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

55365000 is a wasteful number, since it uses less digits than its factorization.

55365000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3720 (or 3701 counting only the distinct ones).

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

The square root of 55365000 is about 7440.7660895905. The cubic root of 55365000 is about 381.1346511205.

The spelling of 55365000 in words is "fifty-five million, three hundred sixty-five thousand".