55374464 has 16 divisors (see below), whose sum is σ = 110316570. Its totient is φ = 27687168.

The previous prime is 55374443. The next prime is 55374467. The reversal of 55374464 is 46447355.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 39438400 + 15936064 = 6280^2 + 3992^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is not an unprimeable number, because it can be changed into a prime (55374467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 216179 + ... + 216434.

Almost surely, 2^55374464 is an apocalyptic number.

It is an amenable number.

55374464 is a deficient number, since it is larger than the sum of its proper divisors (54942106).

55374464 is an equidigital number, since it uses as much as digits as its factorization.

55374464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432627 (or 432615 counting only the distinct ones).

The product of its digits is 201600, while the sum is 38.

The square root of 55374464 is about 7441.4020184371. The cubic root of 55374464 is about 381.1563667220.

It can be divided in two parts, 5537 and 4464, that added together give a palindrome (10001).

The spelling of 55374464 in words is "fifty-five million, three hundred seventy-four thousand, four hundred sixty-four".