5205244381 has 2 divisors, whose sum is σ = 5205244382. Its totient is φ = 5205244380.

The previous prime is 5205244357. The next prime is 5205244391. The reversal of 5205244381 is 1834425025.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5192499481 + 12744900 = 72059^2 + 3570^2 .

It is a cyclic number.

It is not a de Polignac number, because 5205244381 - 2⁵ = 5205244349 is a prime.

It is a super-2 number, since 2×5205244381² = 54189138131864146322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5205244391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2602622190 + 2602622191.

It is an arithmetic number, because the mean of its divisors is an integer number (2602622191).

Almost surely, 2^5205244381 is an apocalyptic number.

It is an amenable number.

5205244381 is a deficient number, since it is larger than the sum of its proper divisors (1).

5205244381 is an equidigital number, since it uses as much as digits as its factorization.

5205244381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38400, while the sum is 34.

The square root of 5205244381 is about 72147.3795851242. The cubic root of 5205244381 is about 1733.0604365203.

The spelling of 5205244381 in words is "five billion, two hundred five million, two hundred forty-four thousand, three hundred eighty-one".