57122773 has 2 divisors, whose sum is σ = 57122774. Its totient is φ = 57122772.

The previous prime is 57122761. The next prime is 57122809. The reversal of 57122773 is 37722175.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56205009 + 917764 = 7497^2 + 958^2 .

It is a cyclic number.

It is not a de Polignac number, because 57122773 - 2¹³ = 57114581 is a prime.

It is a super-2 number, since 2×57122773² = 6526022390419058, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57122713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28561386 + 28561387.

It is an arithmetic number, because the mean of its divisors is an integer number (28561387).

Almost surely, 2^57122773 is an apocalyptic number.

It is an amenable number.

57122773 is a deficient number, since it is larger than the sum of its proper divisors (1).

57122773 is an equidigital number, since it uses as much as digits as its factorization.

57122773 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20580, while the sum is 34.

The square root of 57122773 is about 7557.9609022540. The cubic root of 57122773 is about 385.1262261097.

The spelling of 57122773 in words is "fifty-seven million, one hundred twenty-two thousand, seven hundred seventy-three".