53945890 has 16 divisors (see below), whose sum is σ = 100235520. Its totient is φ = 20882160.

The previous prime is 53945867. The next prime is 53945893. The reversal of 53945890 is 9854935.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (53945893) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86700 + ... + 87319.

It is an arithmetic number, because the mean of its divisors is an integer number (6264720).

Almost surely, 2^53945890 is an apocalyptic number.

53945890 is a deficient number, since it is larger than the sum of its proper divisors (46289630).

53945890 is a wasteful number, since it uses less digits than its factorization.

53945890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174057.

The product of its (nonzero) digits is 194400, while the sum is 43.

The square root of 53945890 is about 7344.7865864162. The cubic root of 53945890 is about 377.8500240208.

The spelling of 53945890 in words is "fifty-three million, nine hundred forty-five thousand, eight hundred ninety".