516503669 has 4 divisors (see below), whose sum is σ = 563458560. Its totient is φ = 469548780.

The previous prime is 516503651. The next prime is 516503681. The reversal of 516503669 is 966305615.

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 516503669 - 2¹⁶ = 516438133 is a prime.

It is a super-2 number, since 2×516503669² = 533552080180923122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516503699) 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, 23477429 + ... + 23477450.

It is an arithmetic number, because the mean of its divisors is an integer number (140864640).

Almost surely, 2^516503669 is an apocalyptic number.

It is an amenable number.

516503669 is a deficient number, since it is larger than the sum of its proper divisors (46954891).

516503669 is a wasteful number, since it uses less digits than its factorization.

516503669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46954890.

The product of its (nonzero) digits is 145800, while the sum is 41.

The square root of 516503669 is about 22726.7170748439. The cubic root of 516503669 is about 802.3388166948.

The spelling of 516503669 in words is "five hundred sixteen million, five hundred three thousand, six hundred sixty-nine".