55641587500777 has 8 divisors (see below), whose sum is σ = 55877380848000. Its totient is φ = 55405819015344.

The previous prime is 55641587500753. The next prime is 55641587500813. The reversal of 55641587500777 is 77700578514655.

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 55641587500777 - 2¹⁵ = 55641587468009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55641587504777) 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, 1723027 + ... + 10688872.

It is an arithmetic number, because the mean of its divisors is an integer number (6984672606000).

Almost surely, 2^{55641587500777} is an apocalyptic number.

It is an amenable number.

55641587500777 is a deficient number, since it is larger than the sum of its proper divisors (235793347223).

55641587500777 is a wasteful number, since it uses less digits than its factorization.

55641587500777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12430895.

The product of its (nonzero) digits is 288120000, while the sum is 67.

The spelling of 55641587500777 in words is "fifty-five trillion, six hundred forty-one billion, five hundred eighty-seven million, five hundred thousand, seven hundred seventy-seven".