52787129 has 2 divisors, whose sum is σ = 52787130. Its totient is φ = 52787128.

The previous prime is 52787117. The next prime is 52787167. The reversal of 52787129 is 92178725.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35581225 + 17205904 = 5965^2 + 4148^2 .

It is a cyclic number.

It is not a de Polignac number, because 52787129 - 2⁴ = 52787113 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (52787429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26393564 + 26393565.

It is an arithmetic number, because the mean of its divisors is an integer number (26393565).

Almost surely, 2^52787129 is an apocalyptic number.

It is an amenable number.

52787129 is a deficient number, since it is larger than the sum of its proper divisors (1).

52787129 is an equidigital number, since it uses as much as digits as its factorization.

52787129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 70560, while the sum is 41.

The square root of 52787129 is about 7265.4751393147. The cubic root of 52787129 is about 375.1250048440.

The spelling of 52787129 in words is "fifty-two million, seven hundred eighty-seven thousand, one hundred twenty-nine".