1524545532 has 18 divisors (see below), whose sum is σ = 3853712408. Its totient is φ = 508181832.

The previous prime is 1524545531. The next prime is 1524545543. The reversal of 1524545532 is 2355454251.

1524545532 is a `hidden beast` number, since 1 + 52 + 4 + 54 + 553 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 42348487 = 1524545532 / (1 + 5 + 2 + 4 + 5 + 4 + 5 + 5 + 3 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1524545531) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21174208 + ... + 21174279.

Almost surely, 2^1524545532 is an apocalyptic number.

1524545532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1524545532 is an abundant number, since it is smaller than the sum of its proper divisors (2329166876).

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

1524545532 is a wasteful number, since it uses less digits than its factorization.

1524545532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42348497 (or 42348492 counting only the distinct ones).

The product of its digits is 120000, while the sum is 36.

The square root of 1524545532 is about 39045.4290794710. The cubic root of 1524545532 is about 1150.9244065760.

Adding to 1524545532 its reverse (2355454251), we get a palindrome (3879999783).

The spelling of 1524545532 in words is "one billion, five hundred twenty-four million, five hundred forty-five thousand, five hundred thirty-two".