53505371 has 2 divisors, whose sum is σ = 53505372. Its totient is φ = 53505370.

The previous prime is 53505343. The next prime is 53505379. The reversal of 53505371 is 17350535.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53505371 is a prime.

It is not a weakly prime, because it can be changed into another prime (53505379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26752685 + 26752686.

It is an arithmetic number, because the mean of its divisors is an integer number (26752686).

Almost surely, 2^53505371 is an apocalyptic number.

53505371 is a deficient number, since it is larger than the sum of its proper divisors (1).

53505371 is an equidigital number, since it uses as much as digits as its factorization.

53505371 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7875, while the sum is 29.

The square root of 53505371 is about 7314.7365639509. The cubic root of 53505371 is about 376.8187112528.

The spelling of 53505371 in words is "fifty-three million, five hundred five thousand, three hundred seventy-one".