57033157 has 2 divisors, whose sum is σ = 57033158. Its totient is φ = 57033156.

The previous prime is 57033131. The next prime is 57033203. The reversal of 57033157 is 75133075.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32421636 + 24611521 = 5694^2 + 4961^2 .

It is a cyclic number.

It is not a de Polignac number, because 57033157 - 2⁷ = 57033029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57033127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28516578 + 28516579.

It is an arithmetic number, because the mean of its divisors is an integer number (28516579).

Almost surely, 2^57033157 is an apocalyptic number.

It is an amenable number.

57033157 is a deficient number, since it is larger than the sum of its proper divisors (1).

57033157 is an equidigital number, since it uses as much as digits as its factorization.

57033157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11025, while the sum is 31.

The square root of 57033157 is about 7552.0299919955. The cubic root of 57033157 is about 384.9247213250.

The spelling of 57033157 in words is "fifty-seven million, thirty-three thousand, one hundred fifty-seven".