51943941 has 24 divisors (see below), whose sum is σ = 88518144. Its totient is φ = 28723680.

The previous prime is 51943939. The next prime is 51943949. The reversal of 51943941 is 14934915.

It is a happy number.

It is not a de Polignac number, because 51943941 - 2¹ = 51943939 is a prime.

It is a super-2 number, since 2×51943941² = 5396346013222962, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51943896 and 51943905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51943949) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11346 + ... + 15251.

It is an arithmetic number, because the mean of its divisors is an integer number (3688256).

Almost surely, 2^51943941 is an apocalyptic number.

It is an amenable number.

51943941 is a deficient number, since it is larger than the sum of its proper divisors (36574203).

51943941 is a wasteful number, since it uses less digits than its factorization.

51943941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26641 (or 26638 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 51943941 is about 7207.2145104749. The cubic root of 51943941 is about 373.1169387079.

The spelling of 51943941 in words is "fifty-one million, nine hundred forty-three thousand, nine hundred forty-one".