51454009 has 4 divisors (see below), whose sum is σ = 51469200. Its totient is φ = 51438820.

The previous prime is 51454001. The next prime is 51454027. The reversal of 51454009 is 90045415.

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 51454009 - 2³ = 51454001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51454001) 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, 54 + ... + 10144.

It is an arithmetic number, because the mean of its divisors is an integer number (12867300).

Almost surely, 2^51454009 is an apocalyptic number.

It is an amenable number.

51454009 is a deficient number, since it is larger than the sum of its proper divisors (15191).

51454009 is a wasteful number, since it uses less digits than its factorization.

51454009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15190.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 51454009 is about 7173.1449866847. The cubic root of 51454009 is about 371.9401592764.

The spelling of 51454009 in words is "fifty-one million, four hundred fifty-four thousand, nine".