53469557 has 2 divisors, whose sum is σ = 53469558. Its totient is φ = 53469556.

The previous prime is 53469473. The next prime is 53469569. The reversal of 53469557 is 75596435.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32364721 + 21104836 = 5689^2 + 4594^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53469557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53460557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26734778 + 26734779.

It is an arithmetic number, because the mean of its divisors is an integer number (26734779).

Almost surely, 2^53469557 is an apocalyptic number.

It is an amenable number.

53469557 is a deficient number, since it is larger than the sum of its proper divisors (1).

53469557 is an equidigital number, since it uses as much as digits as its factorization.

53469557 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 53469557 is about 7312.2880823994. The cubic root of 53469557 is about 376.7346175301.

The spelling of 53469557 in words is "fifty-three million, four hundred sixty-nine thousand, five hundred fifty-seven".