51088738 has 4 divisors (see below), whose sum is σ = 76633110. Its totient is φ = 25544368.

The previous prime is 51088717. The next prime is 51088789. The reversal of 51088738 is 83788015.

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., 33674809 + 17413929 = 5803^2 + 4173^2 .

It is a super-2 number, since 2×51088738² = 5220118300865288, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 51088738.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12772183 + ... + 12772186.

Almost surely, 2^51088738 is an apocalyptic number.

51088738 is a deficient number, since it is larger than the sum of its proper divisors (25544372).

51088738 is a wasteful number, since it uses less digits than its factorization.

51088738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25544371.

The product of its (nonzero) digits is 53760, while the sum is 40.

The square root of 51088738 is about 7147.6386310445. The cubic root of 51088738 is about 371.0579363801.

The spelling of 51088738 in words is "fifty-one million, eighty-eight thousand, seven hundred thirty-eight".