511901272 has 16 divisors (see below), whose sum is σ = 992912400. Its totient is φ = 247124640.

The previous prime is 511901251. The next prime is 511901281. The reversal of 511901272 is 272109115.

It is a self number, because there is not a number n which added to its sum of digits gives 511901272.

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, 1103004 + ... + 1103467.

It is an arithmetic number, because the mean of its divisors is an integer number (62057025).

Almost surely, 2^511901272 is an apocalyptic number.

It is an amenable number.

511901272 is a deficient number, since it is larger than the sum of its proper divisors (481011128).

511901272 is a wasteful number, since it uses less digits than its factorization.

511901272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2206506 (or 2206502 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 28.

The square root of 511901272 is about 22625.2352915942. The cubic root of 511901272 is about 799.9485758612.

The spelling of 511901272 in words is "five hundred eleven million, nine hundred one thousand, two hundred seventy-two".