252423520381 has 2 divisors, whose sum is σ = 252423520382. Its totient is φ = 252423520380.

The previous prime is 252423520351. The next prime is 252423520411. The reversal of 252423520381 is 183025324252.

It is a balanced prime because it is at equal distance from previous prime (252423520351) and next prime (252423520411).

It can be written as a sum of positive squares in only one way, i.e., 252070268356 + 353252025 = 502066^2 + 18795^2 .

It is a cyclic number.

It is not a de Polignac number, because 252423520381 - 2²¹ = 252421423229 is a prime.

It is a super-2 number, since 2×252423520381² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 252423520381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252423520351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126211760190 + 126211760191.

It is an arithmetic number, because the mean of its divisors is an integer number (126211760191).

Almost surely, 2^252423520381 is an apocalyptic number.

It is an amenable number.

252423520381 is a deficient number, since it is larger than the sum of its proper divisors (1).

252423520381 is an equidigital number, since it uses as much as digits as its factorization.

252423520381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 115200, while the sum is 37.

The spelling of 252423520381 in words is "two hundred fifty-two billion, four hundred twenty-three million, five hundred twenty thousand, three hundred eighty-one".