51498074 has 4 divisors (see below), whose sum is σ = 77247114. Its totient is φ = 25749036.

The previous prime is 51498071. The next prime is 51498077. The reversal of 51498074 is 47089415.

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

It is an interprime number because it is at equal distance from previous prime (51498071) and next prime (51498077).

It can be written as a sum of positive squares in only one way, i.e., 28697449 + 22800625 = 5357^2 + 4775^2 .

It is not an unprimeable number, because it can be changed into a prime (51498071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12874517 + ... + 12874520.

Almost surely, 2^51498074 is an apocalyptic number.

51498074 is a deficient number, since it is larger than the sum of its proper divisors (25749040).

51498074 is a wasteful number, since it uses less digits than its factorization.

51498074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25749039.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 51498074 is about 7176.2158551705. The cubic root of 51498074 is about 372.0463049847.

The spelling of 51498074 in words is "fifty-one million, four hundred ninety-eight thousand, seventy-four".