511950 has 24 divisors (see below), whose sum is σ = 1270008. Its totient is φ = 136480.

The previous prime is 511939. The next prime is 511961. The reversal of 511950 is 59115.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (511939) and next prime (511961).

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

511950 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 11 ways as a sum of consecutive naturals, for example, 1557 + ... + 1856.

It is an arithmetic number, because the mean of its divisors is an integer number (52917).

2⁵¹¹⁹⁵⁰ is an apocalyptic number.

511950 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

511950 is an abundant number, since it is smaller than the sum of its proper divisors (758058).

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

511950 is a wasteful number, since it uses less digits than its factorization.

511950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3428 (or 3423 counting only the distinct ones).

The product of its (nonzero) digits is 225, while the sum is 21.

The square root of 511950 is about 715.5068133848. The cubic root of 511950 is about 79.9973957486.

The spelling of 511950 in words is "five hundred eleven thousand, nine hundred fifty".