1523525532 has 12 divisors (see below), whose sum is σ = 3554892936. Its totient is φ = 507841840.

The previous prime is 1523525503. The next prime is 1523525537. The reversal of 1523525532 is 2355253251.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×1523525532² = 4642260093311766048, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1523525493 and 1523525502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1523525537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63480219 + ... + 63480242.

It is an arithmetic number, because the mean of its divisors is an integer number (296241078).

Almost surely, 2^1523525532 is an apocalyptic number.

1523525532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1523525532 is an abundant number, since it is smaller than the sum of its proper divisors (2031367404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1523525532 is a wasteful number, since it uses less digits than its factorization.

1523525532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126960468 (or 126960466 counting only the distinct ones).

The product of its digits is 45000, while the sum is 33.

The square root of 1523525532 is about 39032.3651858301. The cubic root of 1523525532 is about 1150.6676732792.

Adding to 1523525532 its reverse (2355253251), we get a palindrome (3878778783).

The spelling of 1523525532 in words is "one billion, five hundred twenty-three million, five hundred twenty-five thousand, five hundred thirty-two".