57203969 has 2 divisors, whose sum is σ = 57203970. Its totient is φ = 57203968.

The previous prime is 57203957. The next prime is 57203977. The reversal of 57203969 is 96930275.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49843600 + 7360369 = 7060^2 + 2713^2 .

It is a cyclic number.

It is not a de Polignac number, because 57203969 - 2⁴ = 57203953 is a prime.

It is a super-2 number, since 2×57203969² = 6544588138705922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (57203869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28601984 + 28601985.

It is an arithmetic number, because the mean of its divisors is an integer number (28601985).

Almost surely, 2^57203969 is an apocalyptic number.

It is an amenable number.

57203969 is a deficient number, since it is larger than the sum of its proper divisors (1).

57203969 is an equidigital number, since it uses as much as digits as its factorization.

57203969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 102060, while the sum is 41.

The square root of 57203969 is about 7563.3305494339. The cubic root of 57203969 is about 385.3086163237.

The spelling of 57203969 in words is "fifty-seven million, two hundred three thousand, nine hundred sixty-nine".