225784531519 has 2 divisors, whose sum is σ = 225784531520. Its totient is φ = 225784531518.

The previous prime is 225784531499. The next prime is 225784531547. The reversal of 225784531519 is 915135487522.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 225784531519 - 2¹¹ = 225784529471 is a prime.

It is a super-2 number, since 2×225784531519² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225784535519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112892265759 + 112892265760.

It is an arithmetic number, because the mean of its divisors is an integer number (112892265760).

Almost surely, 2^225784531519 is an apocalyptic number.

225784531519 is a deficient number, since it is larger than the sum of its proper divisors (1).

225784531519 is an equidigital number, since it uses as much as digits as its factorization.

225784531519 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3024000, while the sum is 52.

The spelling of 225784531519 in words is "two hundred twenty-five billion, seven hundred eighty-four million, five hundred thirty-one thousand, five hundred nineteen".