55414320 has 80 divisors (see below), whose sum is σ = 185008992. Its totient is φ = 13639680.

The previous prime is 55414319. The next prime is 55414343. The reversal of 55414320 is 2341455.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×55414320² = 6141493722124800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 5761 + ... + 12000.

Almost surely, 2^55414320 is an apocalyptic number.

It is an amenable number.

55414320 is an abundant number, since it is smaller than the sum of its proper divisors (129594672).

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

55414320 is a wasteful number, since it uses less digits than its factorization.

55414320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17790 (or 17784 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 55414320 is about 7444.0795267111. The cubic root of 55414320 is about 381.2477910828.

Adding to 55414320 its reverse (2341455), we get a palindrome (57755775).

The spelling of 55414320 in words is "fifty-five million, four hundred fourteen thousand, three hundred twenty".