55340120 has 64 divisors (see below), whose sum is σ = 140551200. Its totient is φ = 19425280.

The previous prime is 55340113. The next prime is 55340137. The reversal of 55340120 is 2104355.

It is a super-2 number, since 2×55340120² = 6125057763228800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 55340092 and 55340101.

It is a congruent number.

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, 10592 + ... + 14928.

Almost surely, 2^55340120 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 55340120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70275600).

55340120 is an abundant number, since it is smaller than the sum of its proper divisors (85211080).

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

55340120 is a wasteful number, since it uses less digits than its factorization.

55340120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4388 (or 4384 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 55340120 is about 7439.0940308616. The cubic root of 55340120 is about 381.0775509615.

Adding to 55340120 its reverse (2104355), we get a palindrome (57444475).

The spelling of 55340120 in words is "fifty-five million, three hundred forty thousand, one hundred twenty".