53645210 has 8 divisors (see below), whose sum is σ = 96561396. Its totient is φ = 21458080.

The previous prime is 53645203. The next prime is 53645231. The reversal of 53645210 is 1254635.

It can be written as a sum of positive squares in 2 ways, for example, as 53421481 + 223729 = 7309^2 + 473^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 53645210.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2682251 + ... + 2682270.

Almost surely, 2^53645210 is an apocalyptic number.

53645210 is a deficient number, since it is larger than the sum of its proper divisors (42916186).

53645210 is a wasteful number, since it uses less digits than its factorization.

53645210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5364528.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 53645210 is about 7324.2890439960. The cubic root of 53645210 is about 377.1467039460.

Adding to 53645210 its reverse (1254635), we get a palindrome (54899845).

The spelling of 53645210 in words is "fifty-three million, six hundred forty-five thousand, two hundred ten".