53920657 has 8 divisors (see below), whose sum is σ = 63748800. Its totient is φ = 44623824.

The previous prime is 53920649. The next prime is 53920661. The reversal of 53920657 is 75602935.

53920657 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 53920657 - 2³ = 53920649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53920697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132607 + ... + 133012.

It is an arithmetic number, because the mean of its divisors is an integer number (7968600).

Almost surely, 2^53920657 is an apocalyptic number.

It is an amenable number.

53920657 is a deficient number, since it is larger than the sum of its proper divisors (9828143).

53920657 is a wasteful number, since it uses less digits than its factorization.

53920657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265655.

The product of its (nonzero) digits is 56700, while the sum is 37.

The square root of 53920657 is about 7343.0686364762. The cubic root of 53920657 is about 377.7911021604.

The spelling of 53920657 in words is "fifty-three million, nine hundred twenty thousand, six hundred fifty-seven".