53925221 has 16 divisors (see below), whose sum is σ = 63203328. Its totient is φ = 45052800.

The previous prime is 53925217. The next prime is 53925247. The reversal of 53925221 is 12252935.

It is a cyclic number.

It is not a de Polignac number, because 53925221 - 2² = 53925217 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53922221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70481 + ... + 71241.

It is an arithmetic number, because the mean of its divisors is an integer number (3950208).

Almost surely, 2^53925221 is an apocalyptic number.

It is an amenable number.

53925221 is a deficient number, since it is larger than the sum of its proper divisors (9278107).

53925221 is a wasteful number, since it uses less digits than its factorization.

53925221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1012.

The product of its digits is 5400, while the sum is 29.

The square root of 53925221 is about 7343.3793991595. The cubic root of 53925221 is about 377.8017609694.

The spelling of 53925221 in words is "fifty-three million, nine hundred twenty-five thousand, two hundred twenty-one".