48721566 has 16 divisors (see below), whose sum is σ = 100803600. Its totient is φ = 15680448.

The previous prime is 48721523. The next prime is 48721573. The reversal of 48721566 is 66512784.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139831 + ... + 140178.

It is an arithmetic number, because the mean of its divisors is an integer number (6300225).

Almost surely, 2^48721566 is an apocalyptic number.

48721566 is an abundant number, since it is smaller than the sum of its proper divisors (52082034).

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

48721566 is a wasteful number, since it uses less digits than its factorization.

48721566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280043.

The product of its digits is 80640, while the sum is 39.

The square root of 48721566 is about 6980.0835238556. The cubic root of 48721566 is about 365.2361416813.

It can be divided in two parts, 487215 and 66, that multiplied together give a triangular number (32156190 = T₈₀₁₉).

The spelling of 48721566 in words is "forty-eight million, seven hundred twenty-one thousand, five hundred sixty-six".