51659004 has 12 divisors (see below), whose sum is σ = 120537704. Its totient is φ = 17219664.

The previous prime is 51658991. The next prime is 51659017. The reversal of 51659004 is 40095615.

It is an interprime number because it is at equal distance from previous prime (51658991) and next prime (51659017).

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

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, 2152447 + ... + 2152470.

Almost surely, 2^51659004 is an apocalyptic number.

It is an amenable number.

51659004 is an abundant number, since it is smaller than the sum of its proper divisors (68878700).

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

51659004 is a wasteful number, since it uses less digits than its factorization.

51659004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4304924 (or 4304922 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 51659004 is about 7187.4198430313. The cubic root of 51659004 is about 372.4334466628.

The spelling of 51659004 in words is "fifty-one million, six hundred fifty-nine thousand, four".