53656634 has 8 divisors (see below), whose sum is σ = 80998068. Its totient is φ = 26657280.

The previous prime is 53656633. The next prime is 53656649. The reversal of 53656634 is 43665635.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 52606009 + 1050625 = 7253^2 + 1025^2 .

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

It is not an unprimeable number, because it can be changed into a prime (53656633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85127 + ... + 85754.

Almost surely, 2^53656634 is an apocalyptic number.

53656634 is a deficient number, since it is larger than the sum of its proper divisors (27341434).

53656634 is a wasteful number, since it uses less digits than its factorization.

53656634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171040.

The product of its digits is 194400, while the sum is 38.

The square root of 53656634 is about 7325.0688733963. The cubic root of 53656634 is about 377.1734737678.

Subtracting from 53656634 its reverse (43665635), we obtain a palindrome (9990999).

The spelling of 53656634 in words is "fifty-three million, six hundred fifty-six thousand, six hundred thirty-four".