525484278 has 48 divisors (see below), whose sum is σ = 1244932416. Its totient is φ = 158868720.

The previous prime is 525484259. The next prime is 525484303. The reversal of 525484278 is 872484525.

It is a super-2 number, since 2×525484278² = 552267452850362568, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 89625 + ... + 95307.

It is an arithmetic number, because the mean of its divisors is an integer number (25936092).

Almost surely, 2^525484278 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 525484278, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (622466208).

525484278 is an abundant number, since it is smaller than the sum of its proper divisors (719448138).

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

525484278 is a wasteful number, since it uses less digits than its factorization.

525484278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6169 (or 6166 counting only the distinct ones).

The product of its digits is 716800, while the sum is 45.

The square root of 525484278 is about 22923.4438512192. The cubic root of 525484278 is about 806.9622937658.

The spelling of 525484278 in words is "five hundred twenty-five million, four hundred eighty-four thousand, two hundred seventy-eight".