836235397530225 has 243 divisors, whose sum is σ = 1915197066711201. Its totient is φ = 347512518460800.

The previous prime is 836235397530179. The next prime is 836235397530271. The reversal of 836235397530225 is 522035793532638.

The square root of 836235397530225 is 28917735.

It is a perfect power (a square), and thus also a powerful number.

836235397530225 is a `hidden beast` number, since 8 + 3 + 6 + 2 + 3 + 5 + 3 + 97 + 530 + 2 + 2 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (836235397530179) and next prime (836235397530271).

It can be written as a sum of positive squares in 4 ways, for example, as 18189824092209 + 818045573438016 = 4264953^2 + 28601496^2 .

It is not a de Polignac number, because 836235397530225 - 2⁷ = 836235397530097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 242 ways as a sum of consecutive naturals, for example, 33399971407 + ... + 33399996443.

Almost surely, 2^{836235397530225} is an apocalyptic number.

836235397530225 is the 28917735-th square number.

836235397530225 is the 14458868-th centered octagonal number.

It is an amenable number.

836235397530225 is an abundant number, since it is smaller than the sum of its proper divisors (1078961669180976).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

836235397530225 is an equidigital number, since it uses as much as digits as its factorization.

836235397530225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50126 (or 25063 counting only the distinct ones).

The product of its (nonzero) digits is 244944000, while the sum is 63.

The spelling of 836235397530225 in words is "eight hundred thirty-six trillion, two hundred thirty-five billion, three hundred ninety-seven million, five hundred thirty thousand, two hundred twenty-five".