52415869 has 12 divisors (see below), whose sum is σ = 58198140. Its totient is φ = 47168000.

The previous prime is 52415843. The next prime is 52415899. The reversal of 52415869 is 96851425.

It can be written as a sum of positive squares in 2 ways, for example, as 49871844 + 2544025 = 7062^2 + 1595^2 .

It is not a de Polignac number, because 52415869 - 2⁵ = 52415837 is a prime.

It is a super-2 number, since 2×52415869² = 5494846646050322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52415899) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10077 + ... + 14365.

It is an arithmetic number, because the mean of its divisors is an integer number (4849845).

Almost surely, 2^52415869 is an apocalyptic number.

It is an amenable number.

52415869 is a deficient number, since it is larger than the sum of its proper divisors (5782271).

52415869 is a wasteful number, since it uses less digits than its factorization.

52415869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4412 (or 4401 counting only the distinct ones).

The product of its digits is 86400, while the sum is 40.

The square root of 52415869 is about 7239.8804548142. The cubic root of 52415869 is about 374.2434977192.

Subtracting 52415869 from its reverse (96851425), we obtain a square (44435556 = 6666²).

The spelling of 52415869 in words is "fifty-two million, four hundred fifteen thousand, eight hundred sixty-nine".