7867542225 has 12 divisors (see below), whose sum is σ = 13007669936. Its totient is φ = 4196022480.

The previous prime is 7867542203. The next prime is 7867542233. The reversal of 7867542225 is 5222457687.

It is not a de Polignac number, because 7867542225 - 2¹⁵ = 7867509457 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52450207 + ... + 52450356.

Almost surely, 2^7867542225 is an apocalyptic number.

7867542225 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

7867542225 is a deficient number, since it is larger than the sum of its proper divisors (5140127711).

7867542225 is a wasteful number, since it uses less digits than its factorization.

7867542225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104900576 (or 104900571 counting only the distinct ones).

The product of its digits is 1881600, while the sum is 48.

The square root of 7867542225 is about 88699.1669915789. The cubic root of 7867542225 is about 1988.9003650938.

The spelling of 7867542225 in words is "seven billion, eight hundred sixty-seven million, five hundred forty-two thousand, two hundred twenty-five".