53037997 has 2 divisors, whose sum is σ = 53037998. Its totient is φ = 53037996.

The previous prime is 53037973. The next prime is 53038061. The reversal of 53037997 is 79973035.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40780996 + 12257001 = 6386^2 + 3501^2 .

It is a cyclic number.

It is not a de Polignac number, because 53037997 - 2¹¹ = 53035949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53032997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26518998 + 26518999.

It is an arithmetic number, because the mean of its divisors is an integer number (26518999).

Almost surely, 2^53037997 is an apocalyptic number.

It is an amenable number.

53037997 is a deficient number, since it is larger than the sum of its proper divisors (1).

53037997 is an equidigital number, since it uses as much as digits as its factorization.

53037997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 178605, while the sum is 43.

The square root of 53037997 is about 7282.7190663927. The cubic root of 53037997 is about 375.7183197586.

The spelling of 53037997 in words is "fifty-three million, thirty-seven thousand, nine hundred ninety-seven".