52402445 has 8 divisors (see below), whose sum is σ = 62934936. Its totient is φ = 41887296.

The previous prime is 52402433. The next prime is 52402447. The reversal of 52402445 is 54420425.

It can be written as a sum of positive squares in 4 ways, for example, as 27741289 + 24661156 = 5267^2 + 4966^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52402445 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52402447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3659 + ... + 10871.

It is an arithmetic number, because the mean of its divisors is an integer number (7866867).

Almost surely, 2^52402445 is an apocalyptic number.

It is an amenable number.

52402445 is a deficient number, since it is larger than the sum of its proper divisors (10532491).

52402445 is a wasteful number, since it uses less digits than its factorization.

52402445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8671.

The product of its (nonzero) digits is 6400, while the sum is 26.

The square root of 52402445 is about 7238.9533083174. The cubic root of 52402445 is about 374.2115463671.

The spelling of 52402445 in words is "fifty-two million, four hundred two thousand, four hundred forty-five".