3525722721401 has 2 divisors, whose sum is σ = 3525722721402. Its totient is φ = 3525722721400.

The previous prime is 3525722721379. The next prime is 3525722721407. The reversal of 3525722721401 is 1041272275253.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2903752321600 + 621970399801 = 1704040^2 + 788651^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3525722721401 is a prime.

It is a super-3 number, since 3×3525722721401³ (a number of 39 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (3525722721407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1762861360700 + 1762861360701.

It is an arithmetic number, because the mean of its divisors is an integer number (1762861360701).

Almost surely, 2^{3525722721401} is an apocalyptic number.

It is an amenable number.

3525722721401 is a deficient number, since it is larger than the sum of its proper divisors (1).

3525722721401 is an equidigital number, since it uses as much as digits as its factorization.

3525722721401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 235200, while the sum is 41.

Adding to 3525722721401 its reverse (1041272275253), we get a palindrome (4566994996654).

The spelling of 3525722721401 in words is "three trillion, five hundred twenty-five billion, seven hundred twenty-two million, seven hundred twenty-one thousand, four hundred one".