57375397 has 2 divisors, whose sum is σ = 57375398. Its totient is φ = 57375396.

The previous prime is 57375361. The next prime is 57375413. The reversal of 57375397 is 79357375.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57062916 + 312481 = 7554^2 + 559^2 .

It is a cyclic number.

It is not a de Polignac number, because 57375397 - 2¹⁵ = 57342629 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57375347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28687698 + 28687699.

It is an arithmetic number, because the mean of its divisors is an integer number (28687699).

Almost surely, 2^57375397 is an apocalyptic number.

It is an amenable number.

57375397 is a deficient number, since it is larger than the sum of its proper divisors (1).

57375397 is an equidigital number, since it uses as much as digits as its factorization.

57375397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 694575, while the sum is 46.

The square root of 57375397 is about 7574.6549096312. The cubic root of 57375397 is about 385.6931281817.

It can be divided in two parts, 57375 and 397, that multiplied together give a triangular number (22777875 = T₆₇₄₉).

The spelling of 57375397 in words is "fifty-seven million, three hundred seventy-five thousand, three hundred ninety-seven".