255541603633 has 8 divisors (see below), whose sum is σ = 256012996680. Its totient is φ = 255070310400.

The previous prime is 255541603631. The next prime is 255541603643. The reversal of 255541603633 is 336306145552.

It can be written as a sum of positive squares in 4 ways, for example, as 48491122849 + 207050480784 = 220207^2 + 455028^2 .

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 255541603633 - 2¹ = 255541603631 is a prime.

It is a super-2 number, since 2×255541603633² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 255541603633.

It is not an unprimeable number, because it can be changed into a prime (255541603631) 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, 6790413 + ... + 6827941.

It is an arithmetic number, because the mean of its divisors is an integer number (32001624585).

Almost surely, 2^255541603633 is an apocalyptic number.

It is an amenable number.

255541603633 is a deficient number, since it is larger than the sum of its proper divisors (471393047).

255541603633 is a wasteful number, since it uses less digits than its factorization.

255541603633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49907.

The product of its (nonzero) digits is 972000, while the sum is 43.

The spelling of 255541603633 in words is "two hundred fifty-five billion, five hundred forty-one million, six hundred three thousand, six hundred thirty-three".