255531425551 has 8 divisors (see below), whose sum is σ = 259045511184. Its totient is φ = 252017709120.

The previous prime is 255531425531. The next prime is 255531425561. The reversal of 255531425551 is 155524135552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 255531425551 - 2¹³ = 255531417359 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 255531425498 and 255531425507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255531425531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1485561 + ... + 1648621.

It is an arithmetic number, because the mean of its divisors is an integer number (32380688898).

Almost surely, 2^255531425551 is an apocalyptic number.

255531425551 is a deficient number, since it is larger than the sum of its proper divisors (3514085633).

255531425551 is a wasteful number, since it uses less digits than its factorization.

255531425551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184601.

The product of its digits is 750000, while the sum is 43.

The spelling of 255531425551 in words is "two hundred fifty-five billion, five hundred thirty-one million, four hundred twenty-five thousand, five hundred fifty-one".