36155005231 has 4 divisors (see below), whose sum is σ = 36203930200. Its totient is φ = 36106080264.

The previous prime is 36155005223. The next prime is 36155005297. The reversal of 36155005231 is 13250055163.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 36155005231 - 2³ = 36155005223 is a prime.

It is a super-2 number, since 2×36155005231² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 36155005193 and 36155005202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36155005631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24461376 + ... + 24462853.

It is an arithmetic number, because the mean of its divisors is an integer number (9050982550).

Almost surely, 2^36155005231 is an apocalyptic number.

36155005231 is a deficient number, since it is larger than the sum of its proper divisors (48924969).

36155005231 is an equidigital number, since it uses as much as digits as its factorization.

36155005231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48924968.

The product of its (nonzero) digits is 13500, while the sum is 31.

The spelling of 36155005231 in words is "thirty-six billion, one hundred fifty-five million, five thousand, two hundred thirty-one".