55374637 has 2 divisors, whose sum is σ = 55374638. Its totient is φ = 55374636.

The previous prime is 55374611. The next prime is 55374653. The reversal of 55374637 is 73647355.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42850116 + 12524521 = 6546^2 + 3539^2 .

It is a cyclic number.

It is not a de Polignac number, because 55374637 - 2¹¹ = 55372589 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55374637.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55374677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27687318 + 27687319.

It is an arithmetic number, because the mean of its divisors is an integer number (27687319).

Almost surely, 2^55374637 is an apocalyptic number.

It is an amenable number.

55374637 is a deficient number, since it is larger than the sum of its proper divisors (1).

55374637 is an equidigital number, since it uses as much as digits as its factorization.

55374637 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 264600, while the sum is 40.

The square root of 55374637 is about 7441.4136425816. The cubic root of 55374637 is about 381.1567636558.

The spelling of 55374637 in words is "fifty-five million, three hundred seventy-four thousand, six hundred thirty-seven".