57471949 has 2 divisors, whose sum is σ = 57471950. Its totient is φ = 57471948.

The previous prime is 57471919. The next prime is 57471977. The reversal of 57471949 is 94917475.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41190724 + 16281225 = 6418^2 + 4035^2 .

It is a cyclic number.

It is not a de Polignac number, because 57471949 - 2¹¹ = 57469901 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 57471899 and 57471908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57471919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28735974 + 28735975.

It is an arithmetic number, because the mean of its divisors is an integer number (28735975).

Almost surely, 2^57471949 is an apocalyptic number.

It is an amenable number.

57471949 is a deficient number, since it is larger than the sum of its proper divisors (1).

57471949 is an equidigital number, since it uses as much as digits as its factorization.

57471949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 317520, while the sum is 46.

The square root of 57471949 is about 7581.0255902483. The cubic root of 57471949 is about 385.9093565965.

The spelling of 57471949 in words is "fifty-seven million, four hundred seventy-one thousand, nine hundred forty-nine".