21552576701001 has 4 divisors (see below), whose sum is σ = 28736768934672. Its totient is φ = 14368384467332.

The previous prime is 21552576700943. The next prime is 21552576701017. The reversal of 21552576701001 is 10010767525512.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 21552576701001 - 2¹⁸ = 21552576438857 is a prime.

It is a super-2 number, since 2×21552576701001² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21552576701101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3592096116831 + ... + 3592096116836.

It is an arithmetic number, because the mean of its divisors is an integer number (7184192233668).

Almost surely, 2^{21552576701001} is an apocalyptic number.

It is an amenable number.

21552576701001 is a deficient number, since it is larger than the sum of its proper divisors (7184192233671).

21552576701001 is an equidigital number, since it uses as much as digits as its factorization.

21552576701001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7184192233670.

The product of its (nonzero) digits is 147000, while the sum is 42.

The spelling of 21552576701001 in words is "twenty-one trillion, five hundred fifty-two billion, five hundred seventy-six million, seven hundred one thousand, one".