53003657 has 8 divisors (see below), whose sum is σ = 61718976. Its totient is φ = 44574192.

The previous prime is 53003651. The next prime is 53003659. The reversal of 53003657 is 75630035.

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

It is a cyclic number.

It is not a de Polignac number, because 53003657 - 2⁴ = 53003641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53003651) 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 7 ways as a sum of consecutive naturals, for example, 71063 + ... + 71804.

It is an arithmetic number, because the mean of its divisors is an integer number (7714872).

Almost surely, 2^53003657 is an apocalyptic number.

It is an amenable number.

53003657 is a deficient number, since it is larger than the sum of its proper divisors (8715319).

53003657 is a wasteful number, since it uses less digits than its factorization.

53003657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142927.

The product of its (nonzero) digits is 9450, while the sum is 29.

The square root of 53003657 is about 7280.3610487393. The cubic root of 53003657 is about 375.6372146806.

The spelling of 53003657 in words is "fifty-three million, three thousand, six hundred fifty-seven".