21750325401 has 16 divisors (see below), whose sum is σ = 33162061184. Its totient is φ = 12421741824.

The previous prime is 21750325393. The next prime is 21750325417. The reversal of 21750325401 is 10452305712.

It is not a de Polignac number, because 21750325401 - 2³ = 21750325393 is a prime.

It is a super-3 number, since 3×21750325401³ (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (21750325451) 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, 254110 + ... + 328743.

It is an arithmetic number, because the mean of its divisors is an integer number (2072628824).

Almost surely, 2^21750325401 is an apocalyptic number.

21750325401 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

21750325401 is a deficient number, since it is larger than the sum of its proper divisors (11411735783).

21750325401 is a wasteful number, since it uses less digits than its factorization.

21750325401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584640.

The product of its (nonzero) digits is 8400, while the sum is 30.

The spelling of 21750325401 in words is "twenty-one billion, seven hundred fifty million, three hundred twenty-five thousand, four hundred one".