51834489 has 32 divisors (see below), whose sum is σ = 83758080. Its totient is φ = 27853632.

The previous prime is 51834469. The next prime is 51834491. The reversal of 51834489 is 98443815.

It is not a de Polignac number, because 51834489 - 2¹³ = 51826297 is a prime.

It is a super-2 number, since 2×51834489² = 5373628499782242, 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 51834489.

It is not an unprimeable number, because it can be changed into a prime (51834439) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64639 + ... + 65435.

It is an arithmetic number, because the mean of its divisors is an integer number (2617440).

Almost surely, 2^51834489 is an apocalyptic number.

It is an amenable number.

51834489 is a deficient number, since it is larger than the sum of its proper divisors (31923591).

51834489 is a wasteful number, since it uses less digits than its factorization.

51834489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 989.

The product of its digits is 138240, while the sum is 42.

The square root of 51834489 is about 7199.6172814949. The cubic root of 51834489 is about 372.8546873154.

The spelling of 51834489 in words is "fifty-one million, eight hundred thirty-four thousand, four hundred eighty-nine".