501151225 has 12 divisors (see below), whose sum is σ = 622202860. Its totient is φ = 400420800.

The previous prime is 501151207. The next prime is 501151229. The reversal of 501151225 is 522151105.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 242064 + 500909161 = 492^2 + 22381^2 .

It is not a de Polignac number, because 501151225 - 2⁷ = 501151097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 501151196 and 501151205.

It is not an unprimeable number, because it can be changed into a prime (501151229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8635 + ... + 32815.

Almost surely, 2^501151225 is an apocalyptic number.

It is an amenable number.

501151225 is a deficient number, since it is larger than the sum of its proper divisors (121051635).

501151225 is a wasteful number, since it uses less digits than its factorization.

501151225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25020 (or 25015 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 22.

The square root of 501151225 is about 22386.4071480888. The cubic root of 501151225 is about 794.3092109926.

The spelling of 501151225 in words is "five hundred one million, one hundred fifty-one thousand, two hundred twenty-five".