255512479 has 2 divisors, whose sum is σ = 255512480. Its totient is φ = 255512478.

The previous prime is 255512449. The next prime is 255512519. The reversal of 255512479 is 974215552.

255512479 = T₁₃₀₅₀ + T₁₃₀₅₁ + T₁₃₀₅₂.

It is a happy number.

It is an a-pointer prime, because the next prime (255512519) can be obtained adding 255512479 to its sum of digits (40).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 255512479 - 2⁹ = 255511967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255512419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127756239 + 127756240.

It is an arithmetic number, because the mean of its divisors is an integer number (127756240).

Almost surely, 2^255512479 is an apocalyptic number.

255512479 is the 13052-nd centered triangular number.

255512479 is a deficient number, since it is larger than the sum of its proper divisors (1).

255512479 is an equidigital number, since it uses as much as digits as its factorization.

255512479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 126000, while the sum is 40.

The square root of 255512479 is about 15984.7577085172. The cubic root of 255512479 is about 634.5570962407.

The spelling of 255512479 in words is "two hundred fifty-five million, five hundred twelve thousand, four hundred seventy-nine".