581745435253 has 2 divisors, whose sum is σ = 581745435254. Its totient is φ = 581745435252.

The previous prime is 581745435199. The next prime is 581745435269. The reversal of 581745435253 is 352534547185.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 381778165924 + 199967269329 = 617882^2 + 447177^2 .

It is a cyclic number.

It is not a de Polignac number, because 581745435253 - 2¹³ = 581745427061 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 581745435253.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (581745435853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 290872717626 + 290872717627.

It is an arithmetic number, because the mean of its divisors is an integer number (290872717627).

Almost surely, 2^581745435253 is an apocalyptic number.

It is an amenable number.

581745435253 is a deficient number, since it is larger than the sum of its proper divisors (1).

581745435253 is an equidigital number, since it uses as much as digits as its factorization.

581745435253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10080000, while the sum is 52.

The spelling of 581745435253 in words is "five hundred eighty-one billion, seven hundred forty-five million, four hundred thirty-five thousand, two hundred fifty-three".