52188769 has 4 divisors (see below), whose sum is σ = 52221744. Its totient is φ = 52155796.

The previous prime is 52188767. The next prime is 52188797. The reversal of 52188769 is 96788125.

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 52188769 - 2¹ = 52188767 is a prime.

It is a super-2 number, since 2×52188769² = 5447335219470722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52188767) 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, 13987 + ... + 17320.

It is an arithmetic number, because the mean of its divisors is an integer number (13055436).

Almost surely, 2^52188769 is an apocalyptic number.

It is an amenable number.

52188769 is a deficient number, since it is larger than the sum of its proper divisors (32975).

52188769 is a wasteful number, since it uses less digits than its factorization.

52188769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32974.

The product of its digits is 241920, while the sum is 46.

The square root of 52188769 is about 7224.1794689778. The cubic root of 52188769 is about 373.7022256359.

The spelling of 52188769 in words is "fifty-two million, one hundred eighty-eight thousand, seven hundred sixty-nine".