51452544 has 128 divisors (see below), whose sum is σ = 160735680. Its totient is φ = 14376960.

The previous prime is 51452539. The next prime is 51452563. The reversal of 51452544 is 44525415.

It is a tau number, because it is divible by the number of its divisors (128).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54444 + ... + 55380.

Almost surely, 2^51452544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51452544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80367840).

51452544 is an abundant number, since it is smaller than the sum of its proper divisors (109283136).

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

51452544 is a wasteful number, since it uses less digits than its factorization.

51452544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 978 (or 966 counting only the distinct ones).

The product of its digits is 16000, while the sum is 30.

The square root of 51452544 is about 7173.0428689643. The cubic root of 51452544 is about 371.9366292793.

Adding to 51452544 its reverse (44525415), we get a palindrome (95977959).

The spelling of 51452544 in words is "fifty-one million, four hundred fifty-two thousand, five hundred forty-four".