51463489 has 16 divisors (see below), whose sum is σ = 66954240. Its totient is φ = 38356560.

The previous prime is 51463483. The next prime is 51463513. The reversal of 51463489 is 98436415.

It is not a de Polignac number, because 51463489 - 2⁷ = 51463361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51463483) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12759 + ... + 16300.

It is an arithmetic number, because the mean of its divisors is an integer number (4184640).

Almost surely, 2^51463489 is an apocalyptic number.

It is an amenable number.

51463489 is a deficient number, since it is larger than the sum of its proper divisors (15490751).

51463489 is a wasteful number, since it uses less digits than its factorization.

51463489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29100.

The product of its digits is 103680, while the sum is 40.

The square root of 51463489 is about 7173.8057542702. The cubic root of 51463489 is about 371.9630002319.

The spelling of 51463489 in words is "fifty-one million, four hundred sixty-three thousand, four hundred eighty-nine".