51900549 has 8 divisors (see below), whose sum is σ = 70673280. Its totient is φ = 33864096.

The previous prime is 51900539. The next prime is 51900553. The reversal of 51900549 is 94500915.

51900549 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 51900549 - 2⁷ = 51900421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51900539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183904 + ... + 184185.

It is an arithmetic number, because the mean of its divisors is an integer number (8834160).

Almost surely, 2^51900549 is an apocalyptic number.

It is an amenable number.

51900549 is a deficient number, since it is larger than the sum of its proper divisors (18772731).

51900549 is a wasteful number, since it uses less digits than its factorization.

51900549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368139.

The product of its (nonzero) digits is 8100, while the sum is 33.

The square root of 51900549 is about 7204.2035645864. The cubic root of 51900549 is about 373.0130138468.

The spelling of 51900549 in words is "fifty-one million, nine hundred thousand, five hundred forty-nine".