500254023647381 has 2 divisors, whose sum is σ = 500254023647382. Its totient is φ = 500254023647380.

The previous prime is 500254023647377. The next prime is 500254023647419. The reversal of 500254023647381 is 183746320452005.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 400142812744900 + 100111210902481 = 20003570^2 + 10005559^2 .

It is a cyclic number.

It is not a de Polignac number, because 500254023647381 - 2² = 500254023647377 is a prime.

It is a super-2 number, since 2×500254023647381² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (500254023641381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250127011823690 + 250127011823691.

It is an arithmetic number, because the mean of its divisors is an integer number (250127011823691).

Almost surely, 2^{500254023647381} is an apocalyptic number.

It is an amenable number.

500254023647381 is a deficient number, since it is larger than the sum of its proper divisors (1).

500254023647381 is an equidigital number, since it uses as much as digits as its factorization.

500254023647381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4838400, while the sum is 50.

The spelling of 500254023647381 in words is "five hundred trillion, two hundred fifty-four billion, twenty-three million, six hundred forty-seven thousand, three hundred eighty-one".