51109754 has 4 divisors (see below), whose sum is σ = 76664634. Its totient is φ = 25554876.

The previous prime is 51109717. The next prime is 51109771. The reversal of 51109754 is 45790115.

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

It can be written as a sum of positive squares in only one way, i.e., 48790225 + 2319529 = 6985^2 + 1523^2 .

It is a super-2 number, since 2×51109754² = 5224413907881032, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51109754.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12777437 + ... + 12777440.

Almost surely, 2^51109754 is an apocalyptic number.

51109754 is a deficient number, since it is larger than the sum of its proper divisors (25554880).

51109754 is a wasteful number, since it uses less digits than its factorization.

51109754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25554879.

The product of its (nonzero) digits is 6300, while the sum is 32.

The square root of 51109754 is about 7149.1086157646. The cubic root of 51109754 is about 371.1088092003.

Adding to 51109754 its reverse (45790115), we get a palindrome (96899869).

The spelling of 51109754 in words is "fifty-one million, one hundred nine thousand, seven hundred fifty-four".