53494657 has 2 divisors, whose sum is σ = 53494658. Its totient is φ = 53494656.

The previous prime is 53494577. The next prime is 53494667. The reversal of 53494657 is 75649435.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36978561 + 16516096 = 6081^2 + 4064^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53494657 is a prime.

It is not a weakly prime, because it can be changed into another prime (53494667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26747328 + 26747329.

It is an arithmetic number, because the mean of its divisors is an integer number (26747329).

Almost surely, 2^53494657 is an apocalyptic number.

It is an amenable number.

53494657 is a deficient number, since it is larger than the sum of its proper divisors (1).

53494657 is an equidigital number, since it uses as much as digits as its factorization.

53494657 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 453600, while the sum is 43.

The square root of 53494657 is about 7314.0041700836. The cubic root of 53494657 is about 376.7935579825.

The spelling of 53494657 in words is "fifty-three million, four hundred ninety-four thousand, six hundred fifty-seven".