75722225 has 12 divisors (see below), whose sum is σ = 94828380. Its totient is φ = 59976000.

The previous prime is 75722197. The next prime is 75722263. The reversal of 75722225 is 52222757.

It can be written as a sum of positive squares in 6 ways, for example, as 9006001 + 66716224 = 3001^2 + 8168^2 .

It is not a de Polignac number, because 75722225 - 2²⁴ = 58945009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 75722191 and 75722200.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12470 + ... + 17519.

It is an arithmetic number, because the mean of its divisors is an integer number (7902365).

Almost surely, 2^75722225 is an apocalyptic number.

It is an amenable number.

75722225 is a deficient number, since it is larger than the sum of its proper divisors (19106155).

75722225 is a wasteful number, since it uses less digits than its factorization.

75722225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30100 (or 30095 counting only the distinct ones).

The product of its digits is 19600, while the sum is 32.

The square root of 75722225 is about 8701.8518144128. The cubic root of 75722225 is about 423.0656732122.

The spelling of 75722225 in words is "seventy-five million, seven hundred twenty-two thousand, two hundred twenty-five".