55804112 has 40 divisors (see below), whose sum is σ = 133074816. Its totient is φ = 22075776.

The previous prime is 55804109. The next prime is 55804117. The reversal of 55804112 is 21140855.

It is a super-2 number, since 2×55804112² = 6228197832217088, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55804117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17708 + ... + 20619.

Almost surely, 2^55804112 is an apocalyptic number.

55804112 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

55804112 is an abundant number, since it is smaller than the sum of its proper divisors (77270704).

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

55804112 is a wasteful number, since it uses less digits than its factorization.

55804112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38355 (or 38349 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 26.

The square root of 55804112 is about 7470.2149902128. The cubic root of 55804112 is about 382.1396198421.

Adding to 55804112 its reverse (21140855), we get a palindrome (76944967).

The spelling of 55804112 in words is "fifty-five million, eight hundred four thousand, one hundred twelve".