2256653573 has 2 divisors, whose sum is σ = 2256653574. Its totient is φ = 2256653572.

The previous prime is 2256653513. The next prime is 2256653591. The reversal of 2256653573 is 3753566522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1385105089 + 871548484 = 37217^2 + 29522^2 .

It is a cyclic number.

It is not a de Polignac number, because 2256653573 - 2¹² = 2256649477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2256653513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1128326786 + 1128326787.

It is an arithmetic number, because the mean of its divisors is an integer number (1128326787).

Almost surely, 2^2256653573 is an apocalyptic number.

It is an amenable number.

2256653573 is a deficient number, since it is larger than the sum of its proper divisors (1).

2256653573 is an equidigital number, since it uses as much as digits as its factorization.

2256653573 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1134000, while the sum is 44.

The square root of 2256653573 is about 47504.2479468942. The cubic root of 2256653573 is about 1311.6610774132.

The spelling of 2256653573 in words is "two billion, two hundred fifty-six million, six hundred fifty-three thousand, five hundred seventy-three".