53668477 has 2 divisors, whose sum is σ = 53668478. Its totient is φ = 53668476.

The previous prime is 53668469. The next prime is 53668481. The reversal of 53668477 is 77486635.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53158681 + 509796 = 7291^2 + 714^2 .

It is a cyclic number.

It is not a de Polignac number, because 53668477 - 2³ = 53668469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53668457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26834238 + 26834239.

It is an arithmetic number, because the mean of its divisors is an integer number (26834239).

Almost surely, 2^53668477 is an apocalyptic number.

It is an amenable number.

53668477 is a deficient number, since it is larger than the sum of its proper divisors (1).

53668477 is an equidigital number, since it uses as much as digits as its factorization.

53668477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 846720, while the sum is 46.

The square root of 53668477 is about 7325.8772170983. The cubic root of 53668477 is about 377.2012214200.

It can be divided in two parts, 53668 and 477, that added together give a palindrome (54145).

The spelling of 53668477 in words is "fifty-three million, six hundred sixty-eight thousand, four hundred seventy-seven".