55415300 has 36 divisors (see below), whose sum is σ = 121398480. Its totient is φ = 21954720.

The previous prime is 55415293. The next prime is 55415323. The reversal of 55415300 is 351455.

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, 8111 + ... + 13289.

It is an arithmetic number, because the mean of its divisors is an integer number (3372180).

Almost surely, 2^55415300 is an apocalyptic number.

55415300 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 55415300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60699240).

55415300 is an abundant number, since it is smaller than the sum of its proper divisors (65983180).

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

55415300 is a wasteful number, since it uses less digits than its factorization.

55415300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5300 (or 5293 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 55415300 is about 7444.1453505423. The cubic root of 55415300 is about 381.2500385201.

Adding to 55415300 its reverse (351455), we get a palindrome (55766755).

The spelling of 55415300 in words is "fifty-five million, four hundred fifteen thousand, three hundred".