52478919 has 12 divisors (see below), whose sum is σ = 75944856. Its totient is φ = 34920432.

The previous prime is 52478911. The next prime is 52478927. The reversal of 52478919 is 91987425.

It is an interprime number because it is at equal distance from previous prime (52478911) and next prime (52478927).

It is not a de Polignac number, because 52478919 - 2³ = 52478911 is a prime.

It is a super-2 number, since 2×52478919² = 5508073878817122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52478911) 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, 112 + ... + 10245.

It is an arithmetic number, because the mean of its divisors is an integer number (6328738).

Almost surely, 2^52478919 is an apocalyptic number.

52478919 is a deficient number, since it is larger than the sum of its proper divisors (23465937).

52478919 is a wasteful number, since it uses less digits than its factorization.

52478919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10926 (or 10923 counting only the distinct ones).

The product of its digits is 181440, while the sum is 45.

The square root of 52478919 is about 7244.2334998259. The cubic root of 52478919 is about 374.3934942643.

The spelling of 52478919 in words is "fifty-two million, four hundred seventy-eight thousand, nine hundred nineteen".