2251403201533 has 2 divisors, whose sum is σ = 2251403201534. Its totient is φ = 2251403201532.

The previous prime is 2251403201513. The next prime is 2251403201557. The reversal of 2251403201533 is 3351023041522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1838361763044 + 413041438489 = 1355862^2 + 642683^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2251403201533 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2251403201495 and 2251403201504.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2251403201513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1125701600766 + 1125701600767.

It is an arithmetic number, because the mean of its divisors is an integer number (1125701600767).

Almost surely, 2^{2251403201533} is an apocalyptic number.

It is an amenable number.

2251403201533 is a deficient number, since it is larger than the sum of its proper divisors (1).

2251403201533 is an equidigital number, since it uses as much as digits as its factorization.

2251403201533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21600, while the sum is 31.

The spelling of 2251403201533 in words is "two trillion, two hundred fifty-one billion, four hundred three million, two hundred one thousand, five hundred thirty-three".