255212501 has 2 divisors, whose sum is σ = 255212502. Its totient is φ = 255212500.

The previous prime is 255212443. The next prime is 255212537. The reversal of 255212501 is 105212552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 253637476 + 1575025 = 15926^2 + 1255^2 .

It is a cyclic number.

It is not a de Polignac number, because 255212501 - 2²² = 251018197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255212591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127606250 + 127606251.

It is an arithmetic number, because the mean of its divisors is an integer number (127606251).

Almost surely, 2^255212501 is an apocalyptic number.

It is an amenable number.

255212501 is a deficient number, since it is larger than the sum of its proper divisors (1).

255212501 is an equidigital number, since it uses as much as digits as its factorization.

255212501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 255212501 is about 15975.3717014660. The cubic root of 255212501 is about 634.3086703959.

The spelling of 255212501 in words is "two hundred fifty-five million, two hundred twelve thousand, five hundred one".