511541125 has 16 divisors (see below), whose sum is σ = 640267056. Its totient is φ = 408038400.

The previous prime is 511541119. The next prime is 511541143. The reversal of 511541125 is 521145115.

It can be written as a sum of positive squares in 8 ways, for example, as 67469796 + 444071329 = 8214^2 + 21073^2 .

It is not a de Polignac number, because 511541125 - 2²¹ = 509443973 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 511541125.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38329 + ... + 49921.

It is an arithmetic number, because the mean of its divisors is an integer number (40016691).

Almost surely, 2^511541125 is an apocalyptic number.

It is an amenable number.

511541125 is a deficient number, since it is larger than the sum of its proper divisors (128725931).

511541125 is a wasteful number, since it uses less digits than its factorization.

511541125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11961 (or 11951 counting only the distinct ones).

The product of its digits is 1000, while the sum is 25.

The square root of 511541125 is about 22617.2749242697. The cubic root of 511541125 is about 799.7609311689.

The spelling of 511541125 in words is "five hundred eleven million, five hundred forty-one thousand, one hundred twenty-five".