52072769 has 4 divisors (see below), whose sum is σ = 59511744. Its totient is φ = 44633796.

The previous prime is 52072763. The next prime is 52072781. The reversal of 52072769 is 96727025.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 52072769 - 2⁴ = 52072753 is a prime.

It is a super-2 number, since 2×52072769² = 5423146542654722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (52072763) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3719477 + ... + 3719490.

It is an arithmetic number, because the mean of its divisors is an integer number (14877936).

Almost surely, 2^52072769 is an apocalyptic number.

It is an amenable number.

52072769 is a deficient number, since it is larger than the sum of its proper divisors (7438975).

52072769 is an equidigital number, since it uses as much as digits as its factorization.

52072769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7438974.

The product of its (nonzero) digits is 52920, while the sum is 38.

The square root of 52072769 is about 7216.1464092686. The cubic root of 52072769 is about 373.4251442105.

The spelling of 52072769 in words is "fifty-two million, seventy-two thousand, seven hundred sixty-nine".