55002340 has 48 divisors (see below), whose sum is σ = 123923520. Its totient is φ = 20442240.

The previous prime is 55002329. The next prime is 55002373. The reversal of 55002340 is 4320055.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18775 + ... + 21505.

It is an arithmetic number, because the mean of its divisors is an integer number (2581740).

Almost surely, 2^55002340 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 55002340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61961760).

55002340 is an abundant number, since it is smaller than the sum of its proper divisors (68921180).

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

55002340 is a wasteful number, since it uses less digits than its factorization.

55002340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2812 (or 2810 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 55002340 is about 7416.3562481855. The cubic root of 55002340 is about 380.3006392777.

Adding to 55002340 its reverse (4320055), we get a palindrome (59322395).

The spelling of 55002340 in words is "fifty-five million, two thousand, three hundred forty".