51362969 has 4 divisors (see below), whose sum is σ = 58700544. Its totient is φ = 44025396.

The previous prime is 51362959. The next prime is 51362977. The reversal of 51362969 is 96926315.

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 51362969 - 2⁴ = 51362953 is a prime.

It is a super-2 number, since 2×51362969² = 5276309168989922, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (51362959) 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, 3668777 + ... + 3668790.

It is an arithmetic number, because the mean of its divisors is an integer number (14675136).

Almost surely, 2^51362969 is an apocalyptic number.

It is an amenable number.

51362969 is a deficient number, since it is larger than the sum of its proper divisors (7337575).

51362969 is an equidigital number, since it uses as much as digits as its factorization.

51362969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7337574.

The product of its digits is 87480, while the sum is 41.

The square root of 51362969 is about 7166.7962856495. The cubic root of 51362969 is about 371.7206660287.

The spelling of 51362969 in words is "fifty-one million, three hundred sixty-two thousand, nine hundred sixty-nine".