55153600 has 42 divisors (see below), whose sum is σ = 135716264. Its totient is φ = 22060800.

The previous prime is 55153591. The next prime is 55153601. The reversal of 55153600 is 635155.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55153601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15636 + ... + 18835.

Almost surely, 2^55153600 is an apocalyptic number.

55153600 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55153600 is an abundant number, since it is smaller than the sum of its proper divisors (80562664).

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

55153600 is a wasteful number, since it uses less digits than its factorization.

55153600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34493 (or 34478 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 25.

The square root of 55153600 is about 7426.5469768931. The cubic root of 55153600 is about 380.6489373276.

Adding to 55153600 its reverse (635155), we get a palindrome (55788755).

The spelling of 55153600 in words is "fifty-five million, one hundred fifty-three thousand, six hundred".