52255591 has 2 divisors, whose sum is σ = 52255592. Its totient is φ = 52255590.

The previous prime is 52255579. The next prime is 52255597. The reversal of 52255591 is 19555225.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 52255591 - 2⁵ = 52255559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52255597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26127795 + 26127796.

It is an arithmetic number, because the mean of its divisors is an integer number (26127796).

Almost surely, 2^52255591 is an apocalyptic number.

52255591 is a deficient number, since it is larger than the sum of its proper divisors (1).

52255591 is an equidigital number, since it uses as much as digits as its factorization.

52255591 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22500, while the sum is 34.

The square root of 52255591 is about 7228.8028746121. The cubic root of 52255591 is about 373.8616525292.

It can be divided in two parts, 5225 and 5591, that added together give a square (10816 = 104²).

The spelling of 52255591 in words is "fifty-two million, two hundred fifty-five thousand, five hundred ninety-one".