512413881 has 32 divisors (see below), whose sum is σ = 844369920. Its totient is φ = 269711616.

The previous prime is 512413877. The next prime is 512413927. The reversal of 512413881 is 188314215.

It is not a de Polignac number, because 512413881 - 2² = 512413877 is a prime.

It is a super-2 number, since 2×512413881² = 525135970882964322, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (512413801) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1510 + ... + 32048.

It is an arithmetic number, because the mean of its divisors is an integer number (26386560).

Almost surely, 2^512413881 is an apocalyptic number.

512413881 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

512413881 is a deficient number, since it is larger than the sum of its proper divisors (331956039).

512413881 is a wasteful number, since it uses less digits than its factorization.

512413881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30613.

The product of its digits is 7680, while the sum is 33.

The square root of 512413881 is about 22636.5607149143. The cubic root of 512413881 is about 800.2155049626.

The spelling of 512413881 in words is "five hundred twelve million, four hundred thirteen thousand, eight hundred eighty-one".