55190744 has 32 divisors (see below), whose sum is σ = 124492800. Its totient is φ = 22407840.

The previous prime is 55190699. The next prime is 55190753. The reversal of 55190744 is 44709155.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 24872 + ... + 26999.

It is an arithmetic number, because the mean of its divisors is an integer number (3890400).

Almost surely, 2^55190744 is an apocalyptic number.

It is an amenable number.

55190744 is an abundant number, since it is smaller than the sum of its proper divisors (69302056).

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

55190744 is a wasteful number, since it uses less digits than its factorization.

55190744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51903 (or 51899 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 55190744 is about 7429.0473144273. The cubic root of 55190744 is about 380.7343693533.

Adding to 55190744 its reverse (44709155), we get a palindrome (99899899).

The spelling of 55190744 in words is "fifty-five million, one hundred ninety thousand, seven hundred forty-four".