55247593 has 2 divisors, whose sum is σ = 55247594. Its totient is φ = 55247592.

The previous prime is 55247557. The next prime is 55247617. The reversal of 55247593 is 39574255.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49112064 + 6135529 = 7008^2 + 2477^2 .

It is a cyclic number.

It is not a de Polignac number, because 55247593 - 2¹⁷ = 55116521 is a prime.

It is not a weakly prime, because it can be changed into another prime (55247503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27623796 + 27623797.

It is an arithmetic number, because the mean of its divisors is an integer number (27623797).

Almost surely, 2^55247593 is an apocalyptic number.

It is an amenable number.

55247593 is a deficient number, since it is larger than the sum of its proper divisors (1).

55247593 is an equidigital number, since it uses as much as digits as its factorization.

55247593 is an evil number, because the sum of its binary digits is even.

The product of its digits is 189000, while the sum is 40.

The square root of 55247593 is about 7432.8724595542. The cubic root of 55247593 is about 380.8650491212.

The spelling of 55247593 in words is "fifty-five million, two hundred forty-seven thousand, five hundred ninety-three".