52442451 has 32 divisors (see below), whose sum is σ = 82444800. Its totient is φ = 32853600.

The previous prime is 52442443. The next prime is 52442473. The reversal of 52442451 is 15424425.

It is not a de Polignac number, because 52442451 - 2³ = 52442443 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (52442651) 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 31 ways as a sum of consecutive naturals, for example, 77125 + ... + 77801.

It is an arithmetic number, because the mean of its divisors is an integer number (2576400).

Almost surely, 2^52442451 is an apocalyptic number.

52442451 is a deficient number, since it is larger than the sum of its proper divisors (30002349).

52442451 is a wasteful number, since it uses less digits than its factorization.

52442451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 856 (or 850 counting only the distinct ones).

The product of its digits is 6400, while the sum is 27.

The square root of 52442451 is about 7241.7160259154. The cubic root of 52442451 is about 374.3067512060.

Adding to 52442451 its reverse (15424425), we get a palindrome (67866876).

The spelling of 52442451 in words is "fifty-two million, four hundred forty-two thousand, four hundred fifty-one".