57273479 has 2 divisors, whose sum is σ = 57273480. Its totient is φ = 57273478.

The previous prime is 57273457. The next prime is 57273509. The reversal of 57273479 is 97437275.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57273479 - 2¹² = 57269383 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 (57273439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28636739 + 28636740.

It is an arithmetic number, because the mean of its divisors is an integer number (28636740).

Almost surely, 2^57273479 is an apocalyptic number.

57273479 is a deficient number, since it is larger than the sum of its proper divisors (1).

57273479 is an equidigital number, since it uses as much as digits as its factorization.

57273479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 370440, while the sum is 44.

The square root of 57273479 is about 7567.9243521589. The cubic root of 57273479 is about 385.4646192582.

The spelling of 57273479 in words is "fifty-seven million, two hundred seventy-three thousand, four hundred seventy-nine".