51489074 has 16 divisors (see below), whose sum is σ = 95057088. Its totient is φ = 20369232.

The previous prime is 51489059. The next prime is 51489079. The reversal of 51489074 is 47098415.

It is a super-2 number, since 2×51489074² = 5302249482754952, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51489079) 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 in 7 ways as a sum of consecutive naturals, for example, 141272 + ... + 141635.

It is an arithmetic number, because the mean of its divisors is an integer number (5941068).

Almost surely, 2^51489074 is an apocalyptic number.

51489074 is a deficient number, since it is larger than the sum of its proper divisors (43568014).

51489074 is a wasteful number, since it uses less digits than its factorization.

51489074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282929.

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

The square root of 51489074 is about 7175.5887563321. The cubic root of 51489074 is about 372.0246303112.

The spelling of 51489074 in words is "fifty-one million, four hundred eighty-nine thousand, seventy-four".