255646462 has 4 divisors (see below), whose sum is σ = 383469696. Its totient is φ = 127823230.

The previous prime is 255646441. The next prime is 255646471. The reversal of 255646462 is 264646552.

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

It is a super-2 number, since 2×255646462² = 130710227066234888, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63911614 + ... + 63911617.

It is an arithmetic number, because the mean of its divisors is an integer number (95867424).

Almost surely, 2^255646462 is an apocalyptic number.

255646462 is a deficient number, since it is larger than the sum of its proper divisors (127823234).

255646462 is a wasteful number, since it uses less digits than its factorization.

255646462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127823233.

The product of its digits is 345600, while the sum is 40.

The square root of 255646462 is about 15988.9481204987. The cubic root of 255646462 is about 634.6679910294.

The spelling of 255646462 in words is "two hundred fifty-five million, six hundred forty-six thousand, four hundred sixty-two".