51943754 has 4 divisors (see below), whose sum is σ = 77915634. Its totient is φ = 25971876.

The previous prime is 51943753. The next prime is 51943783. The reversal of 51943754 is 45734915.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45734915 = 5 ⋅9146983.

It can be written as a sum of positive squares in only one way, i.e., 42549529 + 9394225 = 6523^2 + 3065^2 .

It is a super-2 number, since 2×51943754² = 5396307159225032, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51943751) 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 as a sum of consecutive naturals, namely, 12985937 + ... + 12985940.

Almost surely, 2^51943754 is an apocalyptic number.

51943754 is a deficient number, since it is larger than the sum of its proper divisors (25971880).

51943754 is a wasteful number, since it uses less digits than its factorization.

51943754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25971879.

The product of its digits is 75600, while the sum is 38.

The square root of 51943754 is about 7207.2015373514. The cubic root of 51943754 is about 373.1164909627.

The spelling of 51943754 in words is "fifty-one million, nine hundred forty-three thousand, seven hundred fifty-four".