52378769 has 2 divisors, whose sum is σ = 52378770. Its totient is φ = 52378768.

The previous prime is 52378723. The next prime is 52378783. The reversal of 52378769 is 96787325.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41731600 + 10647169 = 6460^2 + 3263^2 .

It is a cyclic number.

It is not a de Polignac number, because 52378769 - 2²⁰ = 51330193 is a prime.

It is a super-2 number, since 2×52378769² = 5487070883910722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (52378789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26189384 + 26189385.

It is an arithmetic number, because the mean of its divisors is an integer number (26189385).

Almost surely, 2^52378769 is an apocalyptic number.

It is an amenable number.

52378769 is a deficient number, since it is larger than the sum of its proper divisors (1).

52378769 is an equidigital number, since it uses as much as digits as its factorization.

52378769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 635040, while the sum is 47.

The square root of 52378769 is about 7237.3178042698. The cubic root of 52378769 is about 374.1551802489.

The spelling of 52378769 in words is "fifty-two million, three hundred seventy-eight thousand, seven hundred sixty-nine".