53432942657 has 2 divisors, whose sum is σ = 53432942658. Its totient is φ = 53432942656.

The previous prime is 53432942621. The next prime is 53432942681. The reversal of 53432942657 is 75624923435.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46708286641 + 6724656016 = 216121^2 + 82004^2 .

It is a cyclic number.

It is not a de Polignac number, because 53432942657 - 2¹⁰ = 53432941633 is a prime.

It is not a weakly prime, because it can be changed into another prime (53432942617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26716471328 + 26716471329.

It is an arithmetic number, because the mean of its divisors is an integer number (26716471329).

Almost surely, 2^53432942657 is an apocalyptic number.

It is an amenable number.

53432942657 is a deficient number, since it is larger than the sum of its proper divisors (1).

53432942657 is an equidigital number, since it uses as much as digits as its factorization.

53432942657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5443200, while the sum is 50.

The spelling of 53432942657 in words is "fifty-three billion, four hundred thirty-two million, nine hundred forty-two thousand, six hundred fifty-seven".