51452532 has 36 divisors (see below), whose sum is σ = 136907680. Its totient is φ = 16247952.

The previous prime is 51452503. The next prime is 51452537. The reversal of 51452532 is 23525415.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×51452532² = 5294726098422048, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51452496 and 51452505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51452537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36928 + ... + 38295.

Almost surely, 2^51452532 is an apocalyptic number.

It is an amenable number.

51452532 is an abundant number, since it is smaller than the sum of its proper divisors (85455148).

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

51452532 is a wasteful number, since it uses less digits than its factorization.

51452532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75252 (or 75247 counting only the distinct ones).

The product of its digits is 6000, while the sum is 27.

The square root of 51452532 is about 7173.0420324992. The cubic root of 51452532 is about 371.9366003644.

Adding to 51452532 its reverse (23525415), we get a palindrome (74977947).

It can be divided in two parts, 51452 and 532, that added together give a square (51984 = 228²).

The spelling of 51452532 in words is "fifty-one million, four hundred fifty-two thousand, five hundred thirty-two".