55650731 has 4 divisors (see below), whose sum is σ = 58070352. Its totient is φ = 53231112.

The previous prime is 55650719. The next prime is 55650767. The reversal of 55650731 is 13705655.

55650731 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55650731 - 2⁶ = 55650667 is a prime.

It is a super-2 number, since 2×55650731² = 6194007721668722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55650781) 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 3 ways as a sum of consecutive naturals, for example, 1209776 + ... + 1209821.

It is an arithmetic number, because the mean of its divisors is an integer number (14517588).

Almost surely, 2^55650731 is an apocalyptic number.

55650731 is a deficient number, since it is larger than the sum of its proper divisors (2419621).

55650731 is a wasteful number, since it uses less digits than its factorization.

55650731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2419620.

The product of its (nonzero) digits is 15750, while the sum is 32.

The square root of 55650731 is about 7459.9417558048. The cubic root of 55650731 is about 381.7891872455.

The spelling of 55650731 in words is "fifty-five million, six hundred fifty thousand, seven hundred thirty-one".