57788069 has 4 divisors (see below), whose sum is σ = 57816396. Its totient is φ = 57759744.

The previous prime is 57788033. The next prime is 57788077. The reversal of 57788069 is 96088775.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 50225569 + 7562500 = 7087^2 + 2750^2 .

It is a cyclic number.

It is not a de Polignac number, because 57788069 - 2²⁰ = 56739493 is a prime.

It is a super-2 number, since 2×57788069² = 6678921837497522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57788569) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10844 + ... + 15269.

It is an arithmetic number, because the mean of its divisors is an integer number (14454099).

Almost surely, 2^57788069 is an apocalyptic number.

It is an amenable number.

57788069 is a deficient number, since it is larger than the sum of its proper divisors (28327).

57788069 is a wasteful number, since it uses less digits than its factorization.

57788069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28326.

The product of its (nonzero) digits is 846720, while the sum is 50.

The square root of 57788069 is about 7601.8464204429. The cubic root of 57788069 is about 386.6156180956.

The spelling of 57788069 in words is "fifty-seven million, seven hundred eighty-eight thousand, sixty-nine".