255136061 has 4 divisors (see below), whose sum is σ = 255556992. Its totient is φ = 254715132.

The previous prime is 255136027. The next prime is 255136073. The reversal of 255136061 is 160631552.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 255136061 - 2²⁶ = 188027197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255136361) 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, 209555 + ... + 210768.

It is an arithmetic number, because the mean of its divisors is an integer number (63889248).

Almost surely, 2^255136061 is an apocalyptic number.

It is an amenable number.

255136061 is a deficient number, since it is larger than the sum of its proper divisors (420931).

255136061 is an equidigital number, since it uses as much as digits as its factorization.

255136061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420930.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 255136061 is about 15972.9790897002. The cubic root of 255136061 is about 634.2453357288.

The spelling of 255136061 in words is "two hundred fifty-five million, one hundred thirty-six thousand, sixty-one".