48591250721 has 8 divisors (see below), whose sum is σ = 52333005480. Its totient is φ = 44850062592.

The previous prime is 48591250711. The next prime is 48591250733. The reversal of 48591250721 is 12705219584.

It can be written as a sum of positive squares in 4 ways, for example, as 74580496 + 48516670225 = 8636^2 + 220265^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 48591250721 - 2²² = 48587056417 is a prime.

It is a super-2 number, since 2×48591250721² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (48591250711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45635 + ... + 315063.

It is an arithmetic number, because the mean of its divisors is an integer number (6541625685).

Almost surely, 2^48591250721 is an apocalyptic number.

It is an amenable number.

48591250721 is a deficient number, since it is larger than the sum of its proper divisors (3741754759).

48591250721 is a wasteful number, since it uses less digits than its factorization.

48591250721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283315.

The product of its (nonzero) digits is 201600, while the sum is 44.

It can be divided in two parts, 4 and 8591250721, that multiplied together give a square (34365002884 = 185378²).

The spelling of 48591250721 in words is "forty-eight billion, five hundred ninety-one million, two hundred fifty thousand, seven hundred twenty-one".