225015515240 has 32 divisors (see below), whose sum is σ = 506298789000. Its totient is φ = 90003738624.

The previous prime is 225015515201. The next prime is 225015515251. The reversal of 225015515240 is 42515510522.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 168515176036 + 56500339204 = 410506^2 + 237698^2 .

It is a junction number, because it is equal to n+sod(n) for n = 225015515197 and 225015515206.

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 7 ways as a sum of consecutive naturals, for example, 2320856 + ... + 2415864.

Almost surely, 2^225015515240 is an apocalyptic number.

225015515240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225015515240 is an abundant number, since it is smaller than the sum of its proper divisors (281283273760).

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

225015515240 is a wasteful number, since it uses less digits than its factorization.

225015515240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154229 (or 154225 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 32.

The spelling of 225015515240 in words is "two hundred twenty-five billion, fifteen million, five hundred fifteen thousand, two hundred forty".