57552121 has 16 divisors (see below), whose sum is σ = 66340800. Its totient is φ = 49377600.

The previous prime is 57552119. The next prime is 57552133. The reversal of 57552121 is 12125575.

It is a cyclic number.

It is not a de Polignac number, because 57552121 - 2¹ = 57552119 is a prime.

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 57552121.

It is not an unprimeable number, because it can be changed into a prime (57552181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106111 + ... + 106651.

It is an arithmetic number, because the mean of its divisors is an integer number (4146300).

Almost surely, 2^57552121 is an apocalyptic number.

It is an amenable number.

57552121 is a deficient number, since it is larger than the sum of its proper divisors (8788679).

57552121 is a wasteful number, since it uses less digits than its factorization.

57552121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1080.

The product of its digits is 3500, while the sum is 28.

The square root of 57552121 is about 7586.3114225558. The cubic root of 57552121 is about 386.0887180077.

Adding to 57552121 its reverse (12125575), we get a palindrome (69677696).

The spelling of 57552121 in words is "fifty-seven million, five hundred fifty-two thousand, one hundred twenty-one".