53172701 has 2 divisors, whose sum is σ = 53172702. Its totient is φ = 53172700.

The previous prime is 53172683. The next prime is 53172703. The reversal of 53172701 is 10727135.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48288601 + 4884100 = 6949^2 + 2210^2 .

It is a cyclic number.

It is not a de Polignac number, because 53172701 - 2¹⁴ = 53156317 is a prime.

It is a super-2 number, since 2×53172701² = 5654672263270802, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 53172703, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53172703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26586350 + 26586351.

It is an arithmetic number, because the mean of its divisors is an integer number (26586351).

Almost surely, 2^53172701 is an apocalyptic number.

It is an amenable number.

53172701 is a deficient number, since it is larger than the sum of its proper divisors (1).

53172701 is an equidigital number, since it uses as much as digits as its factorization.

53172701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1470, while the sum is 26.

The square root of 53172701 is about 7291.9613959483. The cubic root of 53172701 is about 376.0361294881.

Adding to 53172701 its reverse (10727135), we get a palindrome (63899836).

The spelling of 53172701 in words is "fifty-three million, one hundred seventy-two thousand, seven hundred one".