55049472 has 54 divisors (see below), whose sum is σ = 158727842. Its totient is φ = 18349056.

The previous prime is 55049471. The next prime is 55049473. The reversal of 55049472 is 27494055.

55049472 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (55049471) and next prime (55049473).

It can be written as a sum of positive squares in only one way, i.e., 53934336 + 1115136 = 7344^2 + 1056^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55049471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9643 + ... + 14250.

Almost surely, 2^55049472 is an apocalyptic number.

It is an amenable number.

55049472 is an abundant number, since it is smaller than the sum of its proper divisors (103678370).

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

55049472 is a wasteful number, since it uses less digits than its factorization.

55049472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23915 (or 23898 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 55049472 is about 7419.5331389515. The cubic root of 55049472 is about 380.4092359442.

The spelling of 55049472 in words is "fifty-five million, forty-nine thousand, four hundred seventy-two".