225724494915819 has 12 divisors (see below), whose sum is σ = 328535397181992. Its totient is φ = 149334271444800.

The previous prime is 225724494915769. The next prime is 225724494915827. The reversal of 225724494915819 is 918519494427522.

225724494915819 is a `hidden beast` number, since 2 + 2 + 5 + 72 + 4 + 4 + 9 + 491 + 58 + 19 = 666.

225724494915819 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 225724494915819 - 2¹³ = 225724494907627 is a prime.

It is a super-2 number, since 2×225724494915819² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (225724494915839) 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, 95727095902 + ... + 95727098259.

It is an arithmetic number, because the mean of its divisors is an integer number (27377949765166).

Almost surely, 2^{225724494915819} is an apocalyptic number.

225724494915819 is a deficient number, since it is larger than the sum of its proper divisors (102810902266173).

225724494915819 is a wasteful number, since it uses less digits than its factorization.

225724494915819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191454194298 (or 191454194295 counting only the distinct ones).

The product of its digits is 522547200, while the sum is 72.

The spelling of 225724494915819 in words is "two hundred twenty-five trillion, seven hundred twenty-four billion, four hundred ninety-four million, nine hundred fifteen thousand, eight hundred nineteen".