45042532 has 12 divisors (see below), whose sum is σ = 79637740. Its totient is φ = 22288896.

The previous prime is 45042511. The next prime is 45042541. The reversal of 45042532 is 23524054.

It can be written as a sum of positive squares in 2 ways, for example, as 23270976 + 21771556 = 4824^2 + 4666^2 .

It is a junction number, because it is equal to n+sod(n) for n = 45042497 and 45042506.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57657 + ... + 58432.

Almost surely, 2^45042532 is an apocalyptic number.

It is an amenable number.

45042532 is a deficient number, since it is larger than the sum of its proper divisors (34595208).

45042532 is a wasteful number, since it uses less digits than its factorization.

45042532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116190 (or 116188 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 45042532 is about 6711.3733318897. The cubic root of 45042532 is about 355.8013557449.

Adding to 45042532 its reverse (23524054), we get a palindrome (68566586).

The spelling of 45042532 in words is "forty-five million, forty-two thousand, five hundred thirty-two".