52187413 has 2 divisors, whose sum is σ = 52187414. Its totient is φ = 52187412.

The previous prime is 52187381. The next prime is 52187417. The reversal of 52187413 is 31478125.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50594769 + 1592644 = 7113^2 + 1262^2 .

It is a cyclic number.

It is not a de Polignac number, because 52187413 - 2⁵ = 52187381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52187417) 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, 26093706 + 26093707.

It is an arithmetic number, because the mean of its divisors is an integer number (26093707).

Almost surely, 2^52187413 is an apocalyptic number.

It is an amenable number.

52187413 is a deficient number, since it is larger than the sum of its proper divisors (1).

52187413 is an equidigital number, since it uses as much as digits as its factorization.

52187413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6720, while the sum is 31.

The square root of 52187413 is about 7224.0856168791. The cubic root of 52187413 is about 373.6989890225.

The spelling of 52187413 in words is "fifty-two million, one hundred eighty-seven thousand, four hundred thirteen".