1523530532425 has 72 divisors (see below), whose sum is σ = 2101020901056. Its totient is φ = 1095032400000.

The previous prime is 1523530532389. The next prime is 1523530532441. The reversal of 1523530532425 is 5242350353251.

It is not a de Polignac number, because 1523530532425 - 2¹⁷ = 1523530401353 is a prime.

It is a super-2 number, since 2×1523530532425² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 89976210 + ... + 89993140.

It is an arithmetic number, because the mean of its divisors is an integer number (29180845848).

Almost surely, 2^{1523530532425} is an apocalyptic number.

It is an amenable number.

1523530532425 is a deficient number, since it is larger than the sum of its proper divisors (577490368631).

1523530532425 is a wasteful number, since it uses less digits than its factorization.

1523530532425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17311 (or 17295 counting only the distinct ones).

The product of its (nonzero) digits is 540000, while the sum is 40.

Adding to 1523530532425 its reverse (5242350353251), we get a palindrome (6765880885676).

The spelling of 1523530532425 in words is "one trillion, five hundred twenty-three billion, five hundred thirty million, five hundred thirty-two thousand, four hundred twenty-five".