53713657 has 2 divisors, whose sum is σ = 53713658. Its totient is φ = 53713656.

The previous prime is 53713643. The next prime is 53713697. The reversal of 53713657 is 75631735.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33454656 + 20259001 = 5784^2 + 4501^2 .

It is a cyclic number.

It is not a de Polignac number, because 53713657 - 2¹⁵ = 53680889 is a prime.

It is not a weakly prime, because it can be changed into another prime (53713697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26856828 + 26856829.

It is an arithmetic number, because the mean of its divisors is an integer number (26856829).

Almost surely, 2^53713657 is an apocalyptic number.

It is an amenable number.

53713657 is a deficient number, since it is larger than the sum of its proper divisors (1).

53713657 is an equidigital number, since it uses as much as digits as its factorization.

53713657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 66150, while the sum is 37.

The square root of 53713657 is about 7328.9601581671. The cubic root of 53713657 is about 377.3070387899.

The spelling of 53713657 in words is "fifty-three million, seven hundred thirteen thousand, six hundred fifty-seven".