55357373 has 2 divisors, whose sum is σ = 55357374. Its totient is φ = 55357372.

The previous prime is 55357363. The next prime is 55357381. The reversal of 55357373 is 37375355.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52388644 + 2968729 = 7238^2 + 1723^2 .

It is a cyclic number.

It is not a de Polignac number, because 55357373 - 2¹⁰ = 55356349 is a prime.

It is a super-2 number, since 2×55357373² = 6128877490922258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55357363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27678686 + 27678687.

It is an arithmetic number, because the mean of its divisors is an integer number (27678687).

Almost surely, 2^55357373 is an apocalyptic number.

It is an amenable number.

55357373 is a deficient number, since it is larger than the sum of its proper divisors (1).

55357373 is an equidigital number, since it uses as much as digits as its factorization.

55357373 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 165375, while the sum is 38.

The square root of 55357373 is about 7440.2535575073. The cubic root of 55357373 is about 381.1171488027.

The spelling of 55357373 in words is "fifty-five million, three hundred fifty-seven thousand, three hundred seventy-three".