2523475751281 has 2 divisors, whose sum is σ = 2523475751282. Its totient is φ = 2523475751280.

The previous prime is 2523475751273. The next prime is 2523475751353. The reversal of 2523475751281 is 1821575743252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1847109319056 + 676366432225 = 1359084^2 + 822415^2 .

It is a cyclic number.

It is not a de Polignac number, because 2523475751281 - 2³ = 2523475751273 is a prime.

It is a super-2 number, since 2×2523475751281² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2523475751231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1261737875640 + 1261737875641.

It is an arithmetic number, because the mean of its divisors is an integer number (1261737875641).

Almost surely, 2^{2523475751281} is an apocalyptic number.

It is an amenable number.

2523475751281 is a deficient number, since it is larger than the sum of its proper divisors (1).

2523475751281 is an equidigital number, since it uses as much as digits as its factorization.

2523475751281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4704000, while the sum is 52.

The spelling of 2523475751281 in words is "two trillion, five hundred twenty-three billion, four hundred seventy-five million, seven hundred fifty-one thousand, two hundred eighty-one".