53699157 has 6 divisors (see below), whose sum is σ = 77565462. Its totient is φ = 35799432.

The previous prime is 53699117. The next prime is 53699159. The reversal of 53699157 is 75199635.

53699157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 52794756 + 904401 = 7266^2 + 951^2 .

It is not a de Polignac number, because 53699157 - 2⁸ = 53698901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53699159) 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 5 ways as a sum of consecutive naturals, for example, 2983278 + ... + 2983295.

It is an arithmetic number, because the mean of its divisors is an integer number (12927577).

Almost surely, 2^53699157 is an apocalyptic number.

It is an amenable number.

53699157 is a deficient number, since it is larger than the sum of its proper divisors (23866305).

53699157 is a wasteful number, since it uses less digits than its factorization.

53699157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5966579 (or 5966576 counting only the distinct ones).

The product of its digits is 255150, while the sum is 45.

The square root of 53699157 is about 7327.9708651168. The cubic root of 53699157 is about 377.2730843933.

The spelling of 53699157 in words is "fifty-three million, six hundred ninety-nine thousand, one hundred fifty-seven".