225021665510 has 16 divisors (see below), whose sum is σ = 405300510000. Its totient is φ = 89950552416.

The previous prime is 225021665509. The next prime is 225021665513. The reversal of 225021665510 is 15566120522.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225021665513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7247960 + ... + 7278939.

It is an arithmetic number, because the mean of its divisors is an integer number (25331281875).

Almost surely, 2^225021665510 is an apocalyptic number.

225021665510 is a deficient number, since it is larger than the sum of its proper divisors (180278844490).

225021665510 is a wasteful number, since it uses less digits than its factorization.

225021665510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14528455.

The product of its (nonzero) digits is 36000, while the sum is 35.

The spelling of 225021665510 in words is "two hundred twenty-five billion, twenty-one million, six hundred sixty-five thousand, five hundred ten".