53178137 has 2 divisors, whose sum is σ = 53178138. Its totient is φ = 53178136.

The previous prime is 53178109. The next prime is 53178161. The reversal of 53178137 is 73187135.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31685641 + 21492496 = 5629^2 + 4636^2 .

It is a cyclic number.

It is not a de Polignac number, because 53178137 - 2⁸ = 53177881 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 53178097 and 53178106.

It is not a weakly prime, because it can be changed into another prime (53178187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26589068 + 26589069.

It is an arithmetic number, because the mean of its divisors is an integer number (26589069).

Almost surely, 2^53178137 is an apocalyptic number.

It is an amenable number.

53178137 is a deficient number, since it is larger than the sum of its proper divisors (1).

53178137 is an equidigital number, since it uses as much as digits as its factorization.

53178137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17640, while the sum is 35.

The square root of 53178137 is about 7292.3341256418. The cubic root of 53178137 is about 376.0489434741.

The spelling of 53178137 in words is "fifty-three million, one hundred seventy-eight thousand, one hundred thirty-seven".