425772216533 has 2 divisors, whose sum is σ = 425772216534. Its totient is φ = 425772216532.

The previous prime is 425772216481. The next prime is 425772216547. The reversal of 425772216533 is 335612277524.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 348758751364 + 77013465169 = 590558^2 + 277513^2 .

It is a cyclic number.

It is not a de Polignac number, because 425772216533 - 2³⁰ = 424698474709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (425772216563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212886108266 + 212886108267.

It is an arithmetic number, because the mean of its divisors is an integer number (212886108267).

Almost surely, 2^425772216533 is an apocalyptic number.

It is an amenable number.

425772216533 is a deficient number, since it is larger than the sum of its proper divisors (1).

425772216533 is an equidigital number, since it uses as much as digits as its factorization.

425772216533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2116800, while the sum is 47.

The spelling of 425772216533 in words is "four hundred twenty-five billion, seven hundred seventy-two million, two hundred sixteen thousand, five hundred thirty-three".