1525232562281 has 2 divisors, whose sum is σ = 1525232562282. Its totient is φ = 1525232562280.

The previous prime is 1525232562277. The next prime is 1525232562289. The reversal of 1525232562281 is 1822652325251.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1417921285225 + 107311277056 = 1190765^2 + 327584^2 .

It is a cyclic number.

It is not a de Polignac number, because 1525232562281 - 2² = 1525232562277 is a prime.

It is a super-2 number, since 2×1525232562281² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1525232562289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 762616281140 + 762616281141.

It is an arithmetic number, because the mean of its divisors is an integer number (762616281141).

Almost surely, 2^{1525232562281} is an apocalyptic number.

It is an amenable number.

1525232562281 is a deficient number, since it is larger than the sum of its proper divisors (1).

1525232562281 is an equidigital number, since it uses as much as digits as its factorization.

1525232562281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 576000, while the sum is 44.

The spelling of 1525232562281 in words is "one trillion, five hundred twenty-five billion, two hundred thirty-two million, five hundred sixty-two thousand, two hundred eighty-one".