55302912 has 216 divisors, whose sum is σ = 190468096. Its totient is φ = 15676416.

The previous prime is 55302911. The next prime is 55302931. The reversal of 55302912 is 21920355.

It is a tau number, because it is divible by the number of its divisors (216).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (55302911) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 435393 + ... + 435519.

Almost surely, 2^55302912 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 55302912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95234048).

55302912 is an abundant number, since it is smaller than the sum of its proper divisors (135165184).

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

55302912 is an equidigital number, since it uses as much as digits as its factorization.

55302912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165 (or 139 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 55302912 is about 7436.5927681970. The cubic root of 55302912 is about 380.9921258215.

The spelling of 55302912 in words is "fifty-five million, three hundred two thousand, nine hundred twelve".