55001501681 has 16 divisors (see below), whose sum is σ = 64631468160. Its totient is φ = 45823240320.

The previous prime is 55001501677. The next prime is 55001501707. The reversal of 55001501681 is 18610510055.

It is a cyclic number.

It is not a de Polignac number, because 55001501681 - 2² = 55001501677 is a prime.

It is a super-2 number, since 2×55001501681² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55001501671) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 279011 + ... + 433416.

It is an arithmetic number, because the mean of its divisors is an integer number (4039466760).

Almost surely, 2^55001501681 is an apocalyptic number.

It is an amenable number.

55001501681 is a deficient number, since it is larger than the sum of its proper divisors (9629966479).

55001501681 is a wasteful number, since it uses less digits than its factorization.

55001501681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712744.

The product of its (nonzero) digits is 6000, while the sum is 32.

The spelling of 55001501681 in words is "fifty-five billion, one million, five hundred one thousand, six hundred eighty-one".