45252532 has 12 divisors (see below), whose sum is σ = 85283716. Its totient is φ = 20885760.

The previous prime is 45252511. The next prime is 45252533. The reversal of 45252532 is 23525254.

It can be written as a sum of positive squares in 2 ways, for example, as 7257636 + 37994896 = 2694^2 + 6164^2 .

It is a super-4 number, since 4×45252532⁴ (a number of 32 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 45252532.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45252533) 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, 435069 + ... + 435172.

Almost surely, 2^45252532 is an apocalyptic number.

It is an amenable number.

45252532 is a deficient number, since it is larger than the sum of its proper divisors (40031184).

45252532 is a wasteful number, since it uses less digits than its factorization.

45252532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 870258 (or 870256 counting only the distinct ones).

The product of its digits is 12000, while the sum is 28.

The square root of 45252532 is about 6727.0002229820. Note that the first 3 decimals coincide. The cubic root of 45252532 is about 356.3534447930.

Adding to 45252532 its reverse (23525254), we get a palindrome (68777786).

The spelling of 45252532 in words is "forty-five million, two hundred fifty-two thousand, five hundred thirty-two".