51962069 has 4 divisors (see below), whose sum is σ = 52128396. Its totient is φ = 51795744.

The previous prime is 51962063. The next prime is 51962077. The reversal of 51962069 is 96026915.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6061444 + 45900625 = 2462^2 + 6775^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51962069 is a prime.

It is a super-2 number, since 2×51962069² = 5400113229521522, 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 (51962063) 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, 82694 + ... + 83319.

It is an arithmetic number, because the mean of its divisors is an integer number (13032099).

Almost surely, 2^51962069 is an apocalyptic number.

It is an amenable number.

51962069 is a deficient number, since it is larger than the sum of its proper divisors (166327).

51962069 is a wasteful number, since it uses less digits than its factorization.

51962069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166326.

The product of its (nonzero) digits is 29160, while the sum is 38.

The square root of 51962069 is about 7208.4720294942. The cubic root of 51962069 is about 373.1603385542.

The spelling of 51962069 in words is "fifty-one million, nine hundred sixty-two thousand, sixty-nine".