57428753 has 4 divisors (see below), whose sum is σ = 58020900. Its totient is φ = 56836608.

The previous prime is 57428717. The next prime is 57428759. The reversal of 57428753 is 35782475.

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 34656769 + 22771984 = 5887^2 + 4772^2 .

It is a cyclic number.

It is not a de Polignac number, because 57428753 - 2¹⁶ = 57363217 is a prime.

It is a super-2 number, since 2×57428753² = 6596123342270018, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 57428753.

It is not an unprimeable number, because it can be changed into a prime (57428759) 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, 295928 + ... + 296121.

It is an arithmetic number, because the mean of its divisors is an integer number (14505225).

Almost surely, 2^57428753 is an apocalyptic number.

It is an amenable number.

57428753 is a deficient number, since it is larger than the sum of its proper divisors (592147).

57428753 is an equidigital number, since it uses as much as digits as its factorization.

57428753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592146.

The product of its digits is 235200, while the sum is 41.

The square root of 57428753 is about 7578.1760998277. The cubic root of 57428753 is about 385.8126490204.

The spelling of 57428753 in words is "fifty-seven million, four hundred twenty-eight thousand, seven hundred fifty-three".