55953361 has 4 divisors (see below), whose sum is σ = 57465652. Its totient is φ = 54441072.

The previous prime is 55953329. The next prime is 55953377. The reversal of 55953361 is 16335955.

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

It can be written as a sum of positive squares in 2 ways, for example, as 52998400 + 2954961 = 7280^2 + 1719^2 .

It is a cyclic number.

It is not a de Polignac number, because 55953361 - 2⁵ = 55953329 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37), and also a Moran number because the ratio is a prime number: 1512253 = 55953361 / (5 + 5 + 9 + 5 + 3 + 3 + 6 + 1).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55953361.

It is not an unprimeable number, because it can be changed into a prime (55953311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 756090 + ... + 756163.

It is an arithmetic number, because the mean of its divisors is an integer number (14366413).

Almost surely, 2^55953361 is an apocalyptic number.

It is an amenable number.

55953361 is a deficient number, since it is larger than the sum of its proper divisors (1512291).

55953361 is a wasteful number, since it uses less digits than its factorization.

55953361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1512290.

The product of its digits is 60750, while the sum is 37.

The square root of 55953361 is about 7480.1979251889. The cubic root of 55953361 is about 382.4799961060.

The spelling of 55953361 in words is "fifty-five million, nine hundred fifty-three thousand, three hundred sixty-one".