53964557 has 2 divisors, whose sum is σ = 53964558. Its totient is φ = 53964556.

The previous prime is 53964553. The next prime is 53964577. The reversal of 53964557 is 75546935.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53963716 + 841 = 7346^2 + 29^2 .

It is a cyclic number.

It is not a de Polignac number, because 53964557 - 2² = 53964553 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 (53964553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26982278 + 26982279.

It is an arithmetic number, because the mean of its divisors is an integer number (26982279).

Almost surely, 2^53964557 is an apocalyptic number.

It is an amenable number.

53964557 is a deficient number, since it is larger than the sum of its proper divisors (1).

53964557 is an equidigital number, since it uses as much as digits as its factorization.

53964557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 567000, while the sum is 44.

The square root of 53964557 is about 7346.0572418135. The cubic root of 53964557 is about 377.8936017181.

The spelling of 53964557 in words is "fifty-three million, nine hundred sixty-four thousand, five hundred fifty-seven".