55799436 has 72 divisors (see below), whose sum is σ = 165243456. Its totient is φ = 14491680.

The previous prime is 55799383. The next prime is 55799467. The reversal of 55799436 is 63499755.

It is a super-2 number, since 2×55799436² = 6227154115836192, which contains 22 as substring.

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, 2155 + ... + 10781.

It is an arithmetic number, because the mean of its divisors is an integer number (2295048).

Almost surely, 2^55799436 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55799436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82621728).

55799436 is an abundant number, since it is smaller than the sum of its proper divisors (109444020).

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

55799436 is a wasteful number, since it uses less digits than its factorization.

55799436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8659 (or 8650 counting only the distinct ones).

The product of its digits is 1020600, while the sum is 48.

The square root of 55799436 is about 7469.9020073894. The cubic root of 55799436 is about 382.1289459884.

The spelling of 55799436 in words is "fifty-five million, seven hundred ninety-nine thousand, four hundred thirty-six".