225651437597 has 2 divisors, whose sum is σ = 225651437598. Its totient is φ = 225651437596.

The previous prime is 225651437581. The next prime is 225651437617. The reversal of 225651437597 is 795734156522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 225619300036 + 32137561 = 474994^2 + 5669^2 .

It is a cyclic number.

It is not a de Polignac number, because 225651437597 - 2⁴ = 225651437581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225651437567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112825718798 + 112825718799.

It is an arithmetic number, because the mean of its divisors is an integer number (112825718799).

Almost surely, 2^225651437597 is an apocalyptic number.

It is an amenable number.

225651437597 is a deficient number, since it is larger than the sum of its proper divisors (1).

225651437597 is an equidigital number, since it uses as much as digits as its factorization.

225651437597 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15876000, while the sum is 56.

The spelling of 225651437597 in words is "two hundred twenty-five billion, six hundred fifty-one million, four hundred thirty-seven thousand, five hundred ninety-seven".