52391077 has 2 divisors, whose sum is σ = 52391078. Its totient is φ = 52391076.

The previous prime is 52391063. The next prime is 52391099. The reversal of 52391077 is 77019325.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52041796 + 349281 = 7214^2 + 591^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52391077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52391047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26195538 + 26195539.

It is an arithmetic number, because the mean of its divisors is an integer number (26195539).

Almost surely, 2^52391077 is an apocalyptic number.

It is an amenable number.

52391077 is a deficient number, since it is larger than the sum of its proper divisors (1).

52391077 is an equidigital number, since it uses as much as digits as its factorization.

52391077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13230, while the sum is 34.

The square root of 52391077 is about 7238.1680693391. The cubic root of 52391077 is about 374.1844843696.

The spelling of 52391077 in words is "fifty-two million, three hundred ninety-one thousand, seventy-seven".