52447969 has 4 divisors (see below), whose sum is σ = 59940544. Its totient is φ = 44955396.

The previous prime is 52447957. The next prime is 52448029. The reversal of 52447969 is 96974425.

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 52447969 - 2¹⁵ = 52415201 is a prime.

It is a super-2 number, since 2×52447969² = 5501578904449922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52447169) 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, 3746277 + ... + 3746290.

It is an arithmetic number, because the mean of its divisors is an integer number (14985136).

Almost surely, 2^52447969 is an apocalyptic number.

It is an amenable number.

52447969 is a deficient number, since it is larger than the sum of its proper divisors (7492575).

52447969 is an equidigital number, since it uses as much as digits as its factorization.

52447969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7492574.

The product of its digits is 544320, while the sum is 46.

The square root of 52447969 is about 7242.0970029405. The cubic root of 52447969 is about 374.3198789437.

The spelling of 52447969 in words is "fifty-two million, four hundred forty-seven thousand, nine hundred sixty-nine".