55649492 has 24 divisors (see below), whose sum is σ = 101039400. Its totient is φ = 26786816.

The previous prime is 55649471. The next prime is 55649497. The reversal of 55649492 is 29494655.

It can be written as a sum of positive squares in 4 ways, for example, as 21939856 + 33709636 = 4684^2 + 5806^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55649497) 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 in 7 ways as a sum of consecutive naturals, for example, 68384 + ... + 69192.

It is an arithmetic number, because the mean of its divisors is an integer number (4209975).

Almost surely, 2^55649492 is an apocalyptic number.

It is an amenable number.

55649492 is a deficient number, since it is larger than the sum of its proper divisors (45389908).

55649492 is a wasteful number, since it uses less digits than its factorization.

55649492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1435 (or 1433 counting only the distinct ones).

The product of its digits is 388800, while the sum is 44.

The square root of 55649492 is about 7459.8587117988. The cubic root of 55649492 is about 381.7863538576.

The spelling of 55649492 in words is "fifty-five million, six hundred forty-nine thousand, four hundred ninety-two".