55344620 has 12 divisors (see below), whose sum is σ = 116223744. Its totient is φ = 22137840.

The previous prime is 55344599. The next prime is 55344631. The reversal of 55344620 is 2644355.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1383596 + ... + 1383635.

It is an arithmetic number, because the mean of its divisors is an integer number (9685312).

Almost surely, 2^55344620 is an apocalyptic number.

It is an amenable number.

55344620 is an abundant number, since it is smaller than the sum of its proper divisors (60879124).

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

55344620 is a wasteful number, since it uses less digits than its factorization.

55344620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2767240 (or 2767238 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 55344620 is about 7439.3964808982. The cubic root of 55344620 is about 381.0878798302.

Adding to 55344620 its reverse (2644355), we get a palindrome (57988975).

The spelling of 55344620 in words is "fifty-five million, three hundred forty-four thousand, six hundred twenty".