51001494 has 8 divisors (see below), whose sum is σ = 102003000. Its totient is φ = 17000496.

The previous prime is 51001493. The next prime is 51001519. The reversal of 51001494 is 49410015.

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

51001494 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51001493) 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 3 ways as a sum of consecutive naturals, for example, 4250119 + ... + 4250130.

It is an arithmetic number, because the mean of its divisors is an integer number (12750375).

Almost surely, 2^51001494 is an apocalyptic number.

51001494 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51001494 is a wasteful number, since it uses less digits than its factorization.

51001494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8500254.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 51001494 is about 7141.5330286991. The cubic root of 51001494 is about 370.8465980639.

The spelling of 51001494 in words is "fifty-one million, one thousand, four hundred ninety-four".