53620646 has 4 divisors (see below), whose sum is σ = 80430972. Its totient is φ = 26810322.

The previous prime is 53620639. The next prime is 53620663. The reversal of 53620646 is 64602635.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13405160 + ... + 13405163.

It is an arithmetic number, because the mean of its divisors is an integer number (20107743).

Almost surely, 2^53620646 is an apocalyptic number.

53620646 is a deficient number, since it is larger than the sum of its proper divisors (26810326).

53620646 is a wasteful number, since it uses less digits than its factorization.

53620646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26810325.

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 53620646 is about 7322.6119656855. The cubic root of 53620646 is about 377.0891303309.

The spelling of 53620646 in words is "fifty-three million, six hundred twenty thousand, six hundred forty-six".