57154661 has 2 divisors, whose sum is σ = 57154662. Its totient is φ = 57154660.

The previous prime is 57154651. The next prime is 57154681. The reversal of 57154661 is 16645175.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49140100 + 8014561 = 7010^2 + 2831^2 .

It is a cyclic number.

It is not a de Polignac number, because 57154661 - 2¹⁰ = 57153637 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57154651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28577330 + 28577331.

It is an arithmetic number, because the mean of its divisors is an integer number (28577331).

Almost surely, 2^57154661 is an apocalyptic number.

It is an amenable number.

57154661 is a deficient number, since it is larger than the sum of its proper divisors (1).

57154661 is an equidigital number, since it uses as much as digits as its factorization.

57154661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25200, while the sum is 35.

The square root of 57154661 is about 7560.0701716320. The cubic root of 57154661 is about 385.1978765797.

The spelling of 57154661 in words is "fifty-seven million, one hundred fifty-four thousand, six hundred sixty-one".