55704962521 has 8 divisors (see below), whose sum is σ = 59997258440. Its totient is φ = 51413709312.

The previous prime is 55704962473. The next prime is 55704962531. The reversal of 55704962521 is 12526940755.

55704962521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 18425076121 + 37279886400 = 135739^2 + 193080^2 .

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 55704962521 - 2⁷ = 55704962393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55704962531) 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, 147906 + ... + 365083.

It is an arithmetic number, because the mean of its divisors is an integer number (7499657305).

Almost surely, 2^55704962521 is an apocalyptic number.

It is an amenable number.

55704962521 is a deficient number, since it is larger than the sum of its proper divisors (4292295919).

55704962521 is a wasteful number, since it uses less digits than its factorization.

55704962521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521355.

The product of its (nonzero) digits is 756000, while the sum is 46.

The spelling of 55704962521 in words is "fifty-five billion, seven hundred four million, nine hundred sixty-two thousand, five hundred twenty-one".