55641072579 has 12 divisors (see below), whose sum is σ = 76658464008. Its totient is φ = 35897464320.

The previous prime is 55641072577. The next prime is 55641072589. The reversal of 55641072579 is 97527014655.

It is not a de Polignac number, because 55641072579 - 2¹ = 55641072577 is a prime.

It is a super-2 number, since 2×55641072579² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55641072577) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9646974 + ... + 9652739.

It is an arithmetic number, because the mean of its divisors is an integer number (6388205334).

Almost surely, 2^55641072579 is an apocalyptic number.

55641072579 is a deficient number, since it is larger than the sum of its proper divisors (21017391429).

55641072579 is a wasteful number, since it uses less digits than its factorization.

55641072579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19299778 (or 19299747 counting only the distinct ones).

The product of its (nonzero) digits is 2646000, while the sum is 51.

The spelling of 55641072579 in words is "fifty-five billion, six hundred forty-one million, seventy-two thousand, five hundred seventy-nine".