255507707403 has 12 divisors (see below), whose sum is σ = 397456433920. Its totient is φ = 157235512176.

The previous prime is 255507707369. The next prime is 255507707419. The reversal of 255507707403 is 304707705552.

255507707403 is a `hidden beast` number, since 2 + 5 + 5 + 507 + 70 + 74 + 0 + 3 = 666.

It is not a de Polignac number, because 255507707403 - 2⁶ = 255507707339 is a prime.

It is a super-2 number, since 2×255507707403² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (255507708403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1091913163 + ... + 1091913396.

Almost surely, 2^255507707403 is an apocalyptic number.

255507707403 is a deficient number, since it is larger than the sum of its proper divisors (141948726517).

255507707403 is a wasteful number, since it uses less digits than its factorization.

255507707403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2183826578 (or 2183826575 counting only the distinct ones).

The product of its (nonzero) digits is 1029000, while the sum is 45.

The spelling of 255507707403 in words is "two hundred fifty-five billion, five hundred seven million, seven hundred seven thousand, four hundred three".