52450891 has 2 divisors, whose sum is σ = 52450892. Its totient is φ = 52450890.

The previous prime is 52450877. The next prime is 52450897. The reversal of 52450891 is 19805425.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 52450891 - 2⁹ = 52450379 is a prime.

It is not a weakly prime, because it can be changed into another prime (52450897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26225445 + 26225446.

It is an arithmetic number, because the mean of its divisors is an integer number (26225446).

Almost surely, 2^52450891 is an apocalyptic number.

52450891 is a deficient number, since it is larger than the sum of its proper divisors (1).

52450891 is an equidigital number, since it uses as much as digits as its factorization.

52450891 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14400, while the sum is 34.

The square root of 52450891 is about 7242.2987372795. The cubic root of 52450891 is about 374.3268302289.

It can be divided in two parts, 524 and 50891, that added together give a palindrome (51415).

The spelling of 52450891 in words is "fifty-two million, four hundred fifty thousand, eight hundred ninety-one".