57377261 has 8 divisors (see below), whose sum is σ = 60895800. Its totient is φ = 53874688.

The previous prime is 57377251. The next prime is 57377279. The reversal of 57377261 is 16277375.

It can be written as a sum of positive squares in 4 ways, for example, as 33062500 + 24314761 = 5750^2 + 4931^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 57377261 - 2¹⁸ = 57115117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57377251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3875 + ... + 11391.

It is an arithmetic number, because the mean of its divisors is an integer number (7611975).

Almost surely, 2^57377261 is an apocalyptic number.

It is an amenable number.

57377261 is a deficient number, since it is larger than the sum of its proper divisors (3518539).

57377261 is a wasteful number, since it uses less digits than its factorization.

57377261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7983.

The product of its digits is 61740, while the sum is 38.

The square root of 57377261 is about 7574.7779505409. Note that the first 3 decimals coincide. The cubic root of 57377261 is about 385.6973049092.

The spelling of 57377261 in words is "fifty-seven million, three hundred seventy-seven thousand, two hundred sixty-one".