53477687 has 2 divisors, whose sum is σ = 53477688. Its totient is φ = 53477686.

The previous prime is 53477651. The next prime is 53477693. The reversal of 53477687 is 78677435.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53477687 - 2⁶ = 53477623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53470687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26738843 + 26738844.

It is an arithmetic number, because the mean of its divisors is an integer number (26738844).

Almost surely, 2^53477687 is an apocalyptic number.

53477687 is a deficient number, since it is larger than the sum of its proper divisors (1).

53477687 is an equidigital number, since it uses as much as digits as its factorization.

53477687 is an evil number, because the sum of its binary digits is even.

The product of its digits is 987840, while the sum is 47.

The square root of 53477687 is about 7312.8439748158. The cubic root of 53477687 is about 376.7537106202.

The spelling of 53477687 in words is "fifty-three million, four hundred seventy-seven thousand, six hundred eighty-seven".