255552477 has 4 divisors (see below), whose sum is σ = 340736640. Its totient is φ = 170368316.

The previous prime is 255552469. The next prime is 255552481. The reversal of 255552477 is 774255552.

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 255552477 - 2³ = 255552469 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255552277) 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, 42592077 + ... + 42592082.

It is an arithmetic number, because the mean of its divisors is an integer number (85184160).

Almost surely, 2^255552477 is an apocalyptic number.

It is an amenable number.

255552477 is a deficient number, since it is larger than the sum of its proper divisors (85184163).

255552477 is an equidigital number, since it uses as much as digits as its factorization.

255552477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85184162.

The product of its digits is 490000, while the sum is 42.

The square root of 255552477 is about 15986.0087889379. The cubic root of 255552477 is about 634.5902057657.

The spelling of 255552477 in words is "two hundred fifty-five million, five hundred fifty-two thousand, four hundred seventy-seven".