52391029 has 2 divisors, whose sum is σ = 52391030. Its totient is φ = 52391028.

The previous prime is 52390969. The next prime is 52391047. The reversal of 52391029 is 92019325.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47238129 + 5152900 = 6873^2 + 2270^2 .

It is a cyclic number.

It is not a de Polignac number, because 52391029 - 2⁷ = 52390901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52391099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26195514 + 26195515.

It is an arithmetic number, because the mean of its divisors is an integer number (26195515).

Almost surely, 2^52391029 is an apocalyptic number.

It is an amenable number.

52391029 is a deficient number, since it is larger than the sum of its proper divisors (1).

52391029 is an equidigital number, since it uses as much as digits as its factorization.

52391029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 52391029 is about 7238.1647535822. The cubic root of 52391029 is about 374.1843700953.

The spelling of 52391029 in words is "fifty-two million, three hundred ninety-one thousand, twenty-nine".