51004485 has 56 divisors (see below), whose sum is σ = 104928000. Its totient is φ = 23304672.

The previous prime is 51004469. The next prime is 51004507. The reversal of 51004485 is 58440015.

It is not a de Polignac number, because 51004485 - 2⁴ = 51004469 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 24516 + ... + 26514.

Almost surely, 2^51004485 is an apocalyptic number.

It is an amenable number.

51004485 is an abundant number, since it is smaller than the sum of its proper divisors (53923515).

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

51004485 is an equidigital number, since it uses as much as digits as its factorization.

51004485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2029 (or 2014 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 51004485 is about 7141.7424344483. The cubic root of 51004485 is about 370.8538473972.

The spelling of 51004485 in words is "fifty-one million, four thousand, four hundred eighty-five".