55863100 has 36 divisors (see below), whose sum is σ = 122445288. Its totient is φ = 22120000.

The previous prime is 55863053. The next prime is 55863121. The reversal of 55863100 is 136855.

It is a super-2 number, since 2×55863100² = 6241371883220000, which contains 22 as substring.

It is a congruent number.

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, 7335 + ... + 12865.

It is an arithmetic number, because the mean of its divisors is an integer number (3401258).

Almost surely, 2^55863100 is an apocalyptic number.

55863100 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 55863100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61222644).

55863100 is an abundant number, since it is smaller than the sum of its proper divisors (66582188).

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

55863100 is a wasteful number, since it uses less digits than its factorization.

55863100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5646 (or 5639 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 55863100 is about 7474.1621604030. The cubic root of 55863100 is about 382.2742199230.

Adding to 55863100 its reverse (136855), we get a palindrome (55999955).

The spelling of 55863100 in words is "fifty-five million, eight hundred sixty-three thousand, one hundred".