505250002780 has 12 divisors (see below), whose sum is σ = 1061025005880. Its totient is φ = 202100001104.

The previous prime is 505250002769. The next prime is 505250002793. The reversal of 505250002780 is 87200052505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12631250050 + ... + 12631250089.

It is an arithmetic number, because the mean of its divisors is an integer number (88418750490).

Almost surely, 2^505250002780 is an apocalyptic number.

It is an amenable number.

505250002780 is an abundant number, since it is smaller than the sum of its proper divisors (555775003100).

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

505250002780 is a wasteful number, since it uses less digits than its factorization.

505250002780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25262500148 (or 25262500146 counting only the distinct ones).

The product of its (nonzero) digits is 28000, while the sum is 34.

The spelling of 505250002780 in words is "five hundred five billion, two hundred fifty million, two thousand, seven hundred eighty".