55450368 has 108 divisors (see below), whose sum is σ = 164055528. Its totient is φ = 18001920.

The previous prime is 55450333. The next prime is 55450399. The reversal of 55450368 is 86305455.

It is a super-2 number, since 2×55450368² = 6149486622670848, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 94171 + ... + 94757.

Almost surely, 2^55450368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55450368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82027764).

55450368 is an abundant number, since it is smaller than the sum of its proper divisors (108605160).

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

55450368 is a wasteful number, since it uses less digits than its factorization.

55450368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650 (or 633 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The square root of 55450368 is about 7446.5003860874. The cubic root of 55450368 is about 381.3304426512.

The spelling of 55450368 in words is "fifty-five million, four hundred fifty thousand, three hundred sixty-eight".