51484489 has 4 divisors (see below), whose sum is σ = 58839424. Its totient is φ = 44129556.

The previous prime is 51484481. The next prime is 51484493. The reversal of 51484489 is 98448415.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 51484489 - 2³ = 51484481 is a prime.

It is a super-2 number, since 2×51484489² = 5301305215182242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51484481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3677457 + ... + 3677470.

It is an arithmetic number, because the mean of its divisors is an integer number (14709856).

Almost surely, 2^51484489 is an apocalyptic number.

It is an amenable number.

51484489 is a deficient number, since it is larger than the sum of its proper divisors (7354935).

51484489 is an equidigital number, since it uses as much as digits as its factorization.

51484489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7354934.

The product of its digits is 184320, while the sum is 43.

The square root of 51484489 is about 7175.2692632402. The cubic root of 51484489 is about 372.0135872981.

The spelling of 51484489 in words is "fifty-one million, four hundred eighty-four thousand, four hundred eighty-nine".