7526278225 has 24 divisors (see below), whose sum is σ = 9595606328. Its totient is φ = 5851699200.

The previous prime is 7526278219. The next prime is 7526278259. The reversal of 7526278225 is 5228726257.

It can be written as a sum of positive squares in 12 ways, for example, as 219276864 + 7307001361 = 14808^2 + 85481^2 .

It is not a de Polignac number, because 7526278225 - 2³ = 7526278217 is a prime.

It is a Duffinian 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, 918145 + ... + 926305.

Almost surely, 2^7526278225 is an apocalyptic number.

It is an amenable number.

7526278225 is a deficient number, since it is larger than the sum of its proper divisors (2069328103).

7526278225 is a wasteful number, since it uses less digits than its factorization.

7526278225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9205 (or 9200 counting only the distinct ones).

The product of its digits is 940800, while the sum is 46.

The square root of 7526278225 is about 86754.1251180599. The cubic root of 7526278225 is about 1959.7172840348.

The spelling of 7526278225 in words is "seven billion, five hundred twenty-six million, two hundred seventy-eight thousand, two hundred twenty-five".