53621266 has 24 divisors (see below), whose sum is σ = 84095820. Its totient is φ = 25632672.

The previous prime is 53621221. The next prime is 53621297. The reversal of 53621266 is 66212635.

It can be written as a sum of positive squares in 2 ways, for example, as 46444225 + 7177041 = 6815^2 + 2679^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 234040 + ... + 234268.

Almost surely, 2^53621266 is an apocalyptic number.

53621266 is a deficient number, since it is larger than the sum of its proper divisors (30474554).

53621266 is a wasteful number, since it uses less digits than its factorization.

53621266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378 (or 331 counting only the distinct ones).

The product of its digits is 12960, while the sum is 31.

The square root of 53621266 is about 7322.6543001838. The cubic root of 53621266 is about 377.0905837161.

The spelling of 53621266 in words is "fifty-three million, six hundred twenty-one thousand, two hundred sixty-six".