255212106494 has 4 divisors (see below), whose sum is σ = 382818159744. Its totient is φ = 127606053246.

The previous prime is 255212106491. The next prime is 255212106509. The reversal of 255212106494 is 494601212552.

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

It is a super-2 number, since 2×255212106494² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255212106491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63803026622 + ... + 63803026625.

It is an arithmetic number, because the mean of its divisors is an integer number (95704539936).

Almost surely, 2^255212106494 is an apocalyptic number.

255212106494 is a deficient number, since it is larger than the sum of its proper divisors (127606053250).

255212106494 is a wasteful number, since it uses less digits than its factorization.

255212106494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127606053249.

The product of its (nonzero) digits is 172800, while the sum is 41.

The spelling of 255212106494 in words is "two hundred fifty-five billion, two hundred twelve million, one hundred six thousand, four hundred ninety-four".