55325004 has 144 divisors (see below), whose sum is σ = 163392768. Its totient is φ = 14257152.

The previous prime is 55324999. The next prime is 55325009. The reversal of 55325004 is 40052355.

It is an interprime number because it is at equal distance from previous prime (55324999) and next prime (55325009).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55325009) 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 47 ways as a sum of consecutive naturals, for example, 1043842 + ... + 1043894.

It is an arithmetic number, because the mean of its divisors is an integer number (1134672).

Almost surely, 2^55325004 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 55325004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81696384).

55325004 is an abundant number, since it is smaller than the sum of its proper divisors (108067764).

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

55325004 is a wasteful number, since it uses less digits than its factorization.

55325004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144 (or 125 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 24.

The square root of 55325004 is about 7438.0779775423. The cubic root of 55325004 is about 381.0428510439.

Adding to 55325004 its reverse (40052355), we get a palindrome (95377359).

The spelling of 55325004 in words is "fifty-five million, three hundred twenty-five thousand, four".