52478268 has 48 divisors (see below), whose sum is σ = 126070560. Its totient is φ = 16982784.

The previous prime is 52478267. The next prime is 52478297. The reversal of 52478268 is 86287425.

It is a happy number.

It is a super-2 number, since 2×52478268² = 5507937224559648, which contains 22 as substring.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52478267) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68946 + ... + 69702.

It is an arithmetic number, because the mean of its divisors is an integer number (2626470).

Almost surely, 2^52478268 is an apocalyptic number.

It is an amenable number.

52478268 is an abundant number, since it is smaller than the sum of its proper divisors (73592292).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52478268 is a wasteful number, since it uses less digits than its factorization.

52478268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 926 (or 924 counting only the distinct ones).

The product of its digits is 215040, while the sum is 42.

The square root of 52478268 is about 7244.1885673966. The cubic root of 52478268 is about 374.3919461431.

The spelling of 52478268 in words is "fifty-two million, four hundred seventy-eight thousand, two hundred sixty-eight".