52535642 has 4 divisors (see below), whose sum is σ = 78803466. Its totient is φ = 26267820.

The previous prime is 52535633. The next prime is 52535647. The reversal of 52535642 is 24653525.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 49716601 + 2819041 = 7051^2 + 1679^2 .

It is a junction number, because it is equal to n+sod(n) for n = 52535599 and 52535608.

It is not an unprimeable number, because it can be changed into a prime (52535647) 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 as a sum of consecutive naturals, namely, 13133909 + ... + 13133912.

Almost surely, 2^52535642 is an apocalyptic number.

52535642 is a deficient number, since it is larger than the sum of its proper divisors (26267824).

52535642 is a wasteful number, since it uses less digits than its factorization.

52535642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26267823.

The product of its digits is 36000, while the sum is 32.

The square root of 52535642 is about 7248.1474874619. The cubic root of 52535642 is about 374.5283361892.

The spelling of 52535642 in words is "fifty-two million, five hundred thirty-five thousand, six hundred forty-two".