57752242 has 4 divisors (see below), whose sum is σ = 86628366. Its totient is φ = 28876120.

The previous prime is 57752207. The next prime is 57752243. The reversal of 57752242 is 24225775.

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 only one way, i.e., 35652841 + 22099401 = 5971^2 + 4701^2 .

It is a junction number, because it is equal to n+sod(n) for n = 57752198 and 57752207.

It is not an unprimeable number, because it can be changed into a prime (57752243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14438059 + ... + 14438062.

Almost surely, 2^57752242 is an apocalyptic number.

57752242 is a deficient number, since it is larger than the sum of its proper divisors (28876124).

57752242 is a wasteful number, since it uses less digits than its factorization.

57752242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28876123.

The product of its digits is 39200, while the sum is 34.

The square root of 57752242 is about 7599.4895881237. The cubic root of 57752242 is about 386.5357045919.

The spelling of 57752242 in words is "fifty-seven million, seven hundred fifty-two thousand, two hundred forty-two".