53700091 has 4 divisors (see below), whose sum is σ = 55432384. Its totient is φ = 51967800.

The previous prime is 53700079. The next prime is 53700113. The reversal of 53700091 is 19000735.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53700091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53700001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 866100 + ... + 866161.

It is an arithmetic number, because the mean of its divisors is an integer number (13858096).

Almost surely, 2^53700091 is an apocalyptic number.

53700091 is a deficient number, since it is larger than the sum of its proper divisors (1732293).

53700091 is a wasteful number, since it uses less digits than its factorization.

53700091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1732292.

The product of its (nonzero) digits is 945, while the sum is 25.

The square root of 53700091 is about 7328.0345932590. The cubic root of 53700091 is about 377.2752717090.

The spelling of 53700091 in words is "fifty-three million, seven hundred thousand, ninety-one".