53641998 has 24 divisors (see below), whose sum is σ = 116571000. Its totient is φ = 17827344.

The previous prime is 53641979. The next prime is 53641999. The reversal of 53641998 is 89914635.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53641999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2013 + ... + 10551.

It is an arithmetic number, because the mean of its divisors is an integer number (4857125).

Almost surely, 2^53641998 is an apocalyptic number.

53641998 is an abundant number, since it is smaller than the sum of its proper divisors (62929002).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53641998 is a wasteful number, since it uses less digits than its factorization.

53641998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8896 (or 8893 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 53641998 is about 7324.0697702848. The cubic root of 53641998 is about 377.1391765924.

The spelling of 53641998 in words is "fifty-three million, six hundred forty-one thousand, nine hundred ninety-eight".