255505012 has 18 divisors (see below), whose sum is σ = 520135602. Its totient is φ = 109502064.

The previous prime is 255505001. The next prime is 255505013. The reversal of 255505012 is 210505552.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 248503696 + 7001316 = 15764^2 + 2646^2 .

It is a super-2 number, since 2×255505012² = 130565622314240288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255505013) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 651603 + ... + 651994.

Almost surely, 2^255505012 is an apocalyptic number.

It is an amenable number.

255505012 is an abundant number, since it is smaller than the sum of its proper divisors (264630590).

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

255505012 is a wasteful number, since it uses less digits than its factorization.

255505012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1303615 (or 1303606 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 25.

The square root of 255505012 is about 15984.5241405555. The cubic root of 255505012 is about 634.5509148283.

The spelling of 255505012 in words is "two hundred fifty-five million, five hundred five thousand, twelve".