511902 has 12 divisors (see below), whose sum is σ = 1109160. Its totient is φ = 170628.

The previous prime is 511897. The next prime is 511909. The reversal of 511902 is 209115.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 28439 = 511902 / (5 + 1 + 1 + 9 + 0 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (511909) by changing a digit.

511902 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14202 + ... + 14237.

It is an arithmetic number, because the mean of its divisors is an integer number (92430).

2⁵¹¹⁹⁰² is an apocalyptic number.

511902 is an abundant number, since it is smaller than the sum of its proper divisors (597258).

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

511902 is a wasteful number, since it uses less digits than its factorization.

511902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28447 (or 28444 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 18.

The square root of 511902 is about 715.4732699410. The cubic root of 511902 is about 79.9948955076.

It can be divided in two parts, 51 and 1902, that added together give a triangular number (1953 = T₆₂).

The spelling of 511902 in words is "five hundred eleven thousand, nine hundred two".