55463400 has 96 divisors (see below), whose sum is σ = 191059200. Its totient is φ = 14788800.

The previous prime is 55463393. The next prime is 55463423. The reversal of 55463400 is 436455.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 265 + ... + 10535.

It is an arithmetic number, because the mean of its divisors is an integer number (1990200).

Almost surely, 2^55463400 is an apocalyptic number.

55463400 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 55463400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95529600).

55463400 is an abundant number, since it is smaller than the sum of its proper divisors (135595800).

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

55463400 is a wasteful number, since it uses less digits than its factorization.

55463400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10296 (or 10281 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 55463400 is about 7447.3753766008. The cubic root of 55463400 is about 381.3603138630.

Adding to 55463400 its reverse (436455), we get a palindrome (55899855).

The spelling of 55463400 in words is "fifty-five million, four hundred sixty-three thousand, four hundred".