57029261 has 8 divisors (see below), whose sum is σ = 58033920. Its totient is φ = 56029248.

The previous prime is 57029233. The next prime is 57029263. The reversal of 57029261 is 16292075.

57029261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57029261 is a prime.

It is a super-2 number, since 2×57029261² = 6504673220412242, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57029263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31205 + ... + 32981.

It is an arithmetic number, because the mean of its divisors is an integer number (7254240).

Almost surely, 2^57029261 is an apocalyptic number.

It is an amenable number.

57029261 is a deficient number, since it is larger than the sum of its proper divisors (1004659).

57029261 is a wasteful number, since it uses less digits than its factorization.

57029261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2323.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 57029261 is about 7551.7720436994. The cubic root of 57029261 is about 384.9159562431.

The spelling of 57029261 in words is "fifty-seven million, twenty-nine thousand, two hundred sixty-one".