53072157 has 8 divisors (see below), whose sum is σ = 71320576. Its totient is φ = 35102592.

The previous prime is 53072137. The next prime is 53072177. The reversal of 53072157 is 75127035.

53072157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (53072137) and next prime (53072177).

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

It is not a de Polignac number, because 53072157 - 2⁷ = 53072029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53072137) 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, 69268 + ... + 70029.

It is an arithmetic number, because the mean of its divisors is an integer number (8915072).

Almost surely, 2^53072157 is an apocalyptic number.

It is an amenable number.

53072157 is a deficient number, since it is larger than the sum of its proper divisors (18248419).

53072157 is a wasteful number, since it uses less digits than its factorization.

53072157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139427.

The product of its (nonzero) digits is 7350, while the sum is 30.

The square root of 53072157 is about 7285.0639667748. The cubic root of 53072157 is about 375.7989649821.

The spelling of 53072157 in words is "fifty-three million, seventy-two thousand, one hundred fifty-seven".