53664157 has 2 divisors, whose sum is σ = 53664158. Its totient is φ = 53664156.

The previous prime is 53664109. The next prime is 53664161. The reversal of 53664157 is 75146635.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35593156 + 18071001 = 5966^2 + 4251^2 .

It is a cyclic number.

It is not a de Polignac number, because 53664157 - 2⁷ = 53664029 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53664167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26832078 + 26832079.

It is an arithmetic number, because the mean of its divisors is an integer number (26832079).

Almost surely, 2^53664157 is an apocalyptic number.

It is an amenable number.

53664157 is a deficient number, since it is larger than the sum of its proper divisors (1).

53664157 is an equidigital number, since it uses as much as digits as its factorization.

53664157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 75600, while the sum is 37.

The square root of 53664157 is about 7325.5823659283. The cubic root of 53664157 is about 377.1911003142.

It can be divided in two parts, 53664 and 157, that multiplied together give a palindrome (8425248).

The spelling of 53664157 in words is "fifty-three million, six hundred sixty-four thousand, one hundred fifty-seven".