53621306 has 16 divisors (see below), whose sum is σ = 85932960. Its totient is φ = 25019280.

The previous prime is 53621297. The next prime is 53621327. The reversal of 53621306 is 60312635.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7985 + ... + 13076.

It is an arithmetic number, because the mean of its divisors is an integer number (5370810).

Almost surely, 2^53621306 is an apocalyptic number.

53621306 is a deficient number, since it is larger than the sum of its proper divisors (32311654).

53621306 is a wasteful number, since it uses less digits than its factorization.

53621306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21149.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 53621306 is about 7322.6570314333. The cubic root of 53621306 is about 377.0906774825.

The spelling of 53621306 in words is "fifty-three million, six hundred twenty-one thousand, three hundred six".