51652969 has 3 divisors (see below), whose sum is σ = 51660157. Its totient is φ = 51645782.

The previous prime is 51652967. The next prime is 51652981. The reversal of 51652969 is 96925615.

The square root of 51652969 is 7187.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 96925615 = 5 ⋅19385123.

It is not a de Polignac number, because 51652969 - 2¹ = 51652967 is a prime.

It is a super-2 number, since 2×51652969² = 5336058413029922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51652967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 3594 + ... + 10780.

Almost surely, 2^51652969 is an apocalyptic number.

51652969 is the 7187-th square number.

51652969 is the 3594-th centered octagonal number.

It is an amenable number.

51652969 is a deficient number, since it is larger than the sum of its proper divisors (7188).

51652969 is an frugal number, since it uses more digits than its factorization.

51652969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14374 (or 7187 counting only the distinct ones).

The product of its digits is 145800, while the sum is 43.

The cubic root of 51652969 is about 372.4189430706.

The spelling of 51652969 in words is "fifty-one million, six hundred fifty-two thousand, nine hundred sixty-nine".