57612649 has 2 divisors, whose sum is σ = 57612650. Its totient is φ = 57612648.

The previous prime is 57612641. The next prime is 57612671. The reversal of 57612649 is 94621675.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44796249 + 12816400 = 6693^2 + 3580^2 .

It is a cyclic number.

It is not a de Polignac number, because 57612649 - 2³ = 57612641 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (57612641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28806324 + 28806325.

It is an arithmetic number, because the mean of its divisors is an integer number (28806325).

Almost surely, 2^57612649 is an apocalyptic number.

It is an amenable number.

57612649 is a deficient number, since it is larger than the sum of its proper divisors (1).

57612649 is an equidigital number, since it uses as much as digits as its factorization.

57612649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 40.

The square root of 57612649 is about 7590.2996647036. The cubic root of 57612649 is about 386.2240213917.

It can be divided in two parts, 576 and 12649, that added together give a square (13225 = 115²).

The spelling of 57612649 in words is "fifty-seven million, six hundred twelve thousand, six hundred forty-nine".