225737737523 has 2 divisors, whose sum is σ = 225737737524. Its totient is φ = 225737737522.

The previous prime is 225737737513. The next prime is 225737737567. The reversal of 225737737523 is 325737737522.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 225737737523 - 2³⁴ = 208557868339 is a prime.

It is a super-2 number, since 2×225737737523² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (225737737513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112868868761 + 112868868762.

It is an arithmetic number, because the mean of its divisors is an integer number (112868868762).

Almost surely, 2^225737737523 is an apocalyptic number.

225737737523 is a deficient number, since it is larger than the sum of its proper divisors (1).

225737737523 is an equidigital number, since it uses as much as digits as its factorization.

225737737523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12965400, while the sum is 53.

Subtracting 225737737523 from its reverse (325737737522), we obtain a palindrome (99999999999).

The spelling of 225737737523 in words is "two hundred twenty-five billion, seven hundred thirty-seven million, seven hundred thirty-seven thousand, five hundred twenty-three".