255534451536 has 480 divisors, whose sum is σ = 843520677888. Its totient is φ = 64907827200.

The previous prime is 255534451463. The next prime is 255534451537. The reversal of 255534451536 is 635154435552.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255534451537) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 902948451 + ... + 902948733.

Almost surely, 2^255534451536 is an apocalyptic number.

255534451536 is a gapful number since it is divisible by the number (26) 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 255534451536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (421760338944).

255534451536 is an abundant number, since it is smaller than the sum of its proper divisors (587986226352).

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

255534451536 is a wasteful number, since it uses less digits than its factorization.

255534451536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539 (or 496 counting only the distinct ones).

The product of its digits is 5400000, while the sum is 48.

The spelling of 255534451536 in words is "two hundred fifty-five billion, five hundred thirty-four million, four hundred fifty-one thousand, five hundred thirty-six".