55032600 has 96 divisors (see below), whose sum is σ = 194987520. Its totient is φ = 12577920.

The previous prime is 55032589. The next prime is 55032611. The reversal of 55032600 is 623055.

It is an interprime number because it is at equal distance from previous prime (55032589) and next prime (55032611).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

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, 2352 + ... + 10751.

It is an arithmetic number, because the mean of its divisors is an integer number (2031120).

Almost surely, 2^55032600 is an apocalyptic number.

55032600 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 55032600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97493760).

55032600 is an abundant number, since it is smaller than the sum of its proper divisors (139954920).

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

55032600 is a wasteful number, since it uses less digits than its factorization.

55032600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13129 (or 13120 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 55032600 is about 7418.3960530562. The cubic root of 55032600 is about 380.3703683571.

Adding to 55032600 its reverse (623055), we get a palindrome (55655655).

The spelling of 55032600 in words is "fifty-five million, thirty-two thousand, six hundred".