255555555552 has 192 divisors, whose sum is σ = 814955904000. Its totient is φ = 77267312640.

The previous prime is 255555555527. The next prime is 255555555587.

255555555552 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4237353 + ... + 4297239.

It is an arithmetic number, because the mean of its divisors is an integer number (4244562000).

Almost surely, 2^255555555552 is an apocalyptic number.

255555555552 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 255555555552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (407477952000).

255555555552 is an abundant number, since it is smaller than the sum of its proper divisors (559400348448).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

255555555552 is a wasteful number, since it uses less digits than its factorization.

255555555552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60366 (or 60352 counting only the distinct ones).

The product of its digits is 39062500, while the sum is 54.

The spelling of 255555555552 in words is "two hundred fifty-five billion, five hundred fifty-five million, five hundred fifty-five thousand, five hundred fifty-two".