255043554402 has 96 divisors (see below), whose sum is σ = 644132476800. Its totient is φ = 67264142400.

The previous prime is 255043554397. The next prime is 255043554419. The reversal of 255043554402 is 204455340552.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 18849 + ... + 714452.

It is an arithmetic number, because the mean of its divisors is an integer number (6709713300).

Almost surely, 2^255043554402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 255043554402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (322066238400).

255043554402 is an abundant number, since it is smaller than the sum of its proper divisors (389088922398).

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

255043554402 is a wasteful number, since it uses less digits than its factorization.

255043554402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 733353 (or 733326 counting only the distinct ones).

The product of its (nonzero) digits is 480000, while the sum is 39.

Adding to 255043554402 its reverse (204455340552), we get a palindrome (459498894954).

The spelling of 255043554402 in words is "two hundred fifty-five billion, forty-three million, five hundred fifty-four thousand, four hundred two".