51494007 has 8 divisors (see below), whose sum is σ = 70873600. Its totient is φ = 33221880.

The previous prime is 51493997. The next prime is 51494029. The reversal of 51494007 is 70049415.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51494007 - 2²³ = 43105399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51494507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 276757 + ... + 276942.

It is an arithmetic number, because the mean of its divisors is an integer number (8859200).

Almost surely, 2^51494007 is an apocalyptic number.

51494007 is a deficient number, since it is larger than the sum of its proper divisors (19379593).

51494007 is a wasteful number, since it uses less digits than its factorization.

51494007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553733.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 51494007 is about 7175.9324829600. The cubic root of 51494007 is about 372.0365107534.

The spelling of 51494007 in words is "fifty-one million, four hundred ninety-four thousand, seven".