511332461 has 4 divisors (see below), whose sum is σ = 511543872. Its totient is φ = 511121052.

The previous prime is 511332449. The next prime is 511332469. The reversal of 511332461 is 164233115.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 511332461 - 2¹⁸ = 511070317 is a prime.

It is a super-2 number, since 2×511332461² = 522921771344633042, which contains 22 as substring.

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 511332461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (511332469) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102035 + ... + 106928.

It is an arithmetic number, because the mean of its divisors is an integer number (127885968).

Almost surely, 2^511332461 is an apocalyptic number.

It is an amenable number.

511332461 is a deficient number, since it is larger than the sum of its proper divisors (211411).

511332461 is a wasteful number, since it uses less digits than its factorization.

511332461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211410.

The product of its digits is 2160, while the sum is 26.

The square root of 511332461 is about 22612.6615196000. The cubic root of 511332461 is about 799.6521722292.

Adding to 511332461 its reverse (164233115), we get a palindrome (675565576).

The spelling of 511332461 in words is "five hundred eleven million, three hundred thirty-two thousand, four hundred sixty-one".