55125600 has 144 divisors (see below), whose sum is σ = 181988352. Its totient is φ = 14492160.

The previous prime is 55125599. The next prime is 55125601. The reversal of 55125600 is 652155.

It is an interprime number because it is at equal distance from previous prime (55125599) and next prime (55125601).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55125601) 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, 247089 + ... + 247311.

It is an arithmetic number, because the mean of its divisors is an integer number (1263808).

Almost surely, 2^55125600 is an apocalyptic number.

55125600 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 55125600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90994176).

55125600 is an abundant number, since it is smaller than the sum of its proper divisors (126862752).

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

55125600 is a wasteful number, since it uses less digits than its factorization.

55125600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349 (or 336 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 55125600 is about 7424.6616084506. The cubic root of 55125600 is about 380.5845113465.

Adding to 55125600 its reverse (652155), we get a palindrome (55777755).

The spelling of 55125600 in words is "fifty-five million, one hundred twenty-five thousand, six hundred".