55551360 has 64 divisors (see below), whose sum is σ = 177076080. Its totient is φ = 14813184.

The previous prime is 55551341. The next prime is 55551361. The reversal of 55551360 is 6315555.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55551361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12547 + ... + 16386.

Almost surely, 2^55551360 is an apocalyptic number.

It is an amenable number.

55551360 is an abundant number, since it is smaller than the sum of its proper divisors (121524720).

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

55551360 is a wasteful number, since it uses less digits than its factorization.

55551360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28955 (or 28943 counting only the distinct ones).

The product of its (nonzero) digits is 11250, while the sum is 30.

The square root of 55551360 is about 7453.2784732626. The cubic root of 55551360 is about 381.5618085182.

It can be divided in two parts, 555 and 51360, that added together give a palindrome (51915).

The spelling of 55551360 in words is "fifty-five million, five hundred fifty-one thousand, three hundred sixty".