55259604 has 48 divisors (see below), whose sum is σ = 144222400. Its totient is φ = 18296928.

The previous prime is 55259597. The next prime is 55259641. The reversal of 55259604 is 40695255.

55259604 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15327 + ... + 18585.

Almost surely, 2^55259604 is an apocalyptic number.

55259604 is a gapful number since it is divisible by the number (54) 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 55259604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72111200).

55259604 is an abundant number, since it is smaller than the sum of its proper divisors (88962796).

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

55259604 is a wasteful number, since it uses less digits than its factorization.

55259604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3429 (or 3421 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The square root of 55259604 is about 7433.6803805383. The cubic root of 55259604 is about 380.8926475400.

It can be divided in two parts, 5525 and 9604, that added together give a square (15129 = 123²).

The spelling of 55259604 in words is "fifty-five million, two hundred fifty-nine thousand, six hundred four".