55326493 has 2 divisors, whose sum is σ = 55326494. Its totient is φ = 55326492.

The previous prime is 55326463. The next prime is 55326503. The reversal of 55326493 is 39462355.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40411449 + 14915044 = 6357^2 + 3862^2 .

It is a cyclic number.

It is not a de Polignac number, because 55326493 - 2⁹ = 55325981 is a prime.

It is a super-2 number, since 2×55326493² = 6122041655358098, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55326443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27663246 + 27663247.

It is an arithmetic number, because the mean of its divisors is an integer number (27663247).

Almost surely, 2^55326493 is an apocalyptic number.

It is an amenable number.

55326493 is a deficient number, since it is larger than the sum of its proper divisors (1).

55326493 is an equidigital number, since it uses as much as digits as its factorization.

55326493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 97200, while the sum is 37.

The square root of 55326493 is about 7438.1780699308. The cubic root of 55326493 is about 381.0462694362.

The spelling of 55326493 in words is "fifty-five million, three hundred twenty-six thousand, four hundred ninety-three".