53250121 has 4 divisors (see below), whose sum is σ = 53569152. Its totient is φ = 52931092.

The previous prime is 53250101. The next prime is 53250139. The reversal of 53250121 is 12105235.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12105235 = 5 ⋅2421047.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53250121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53250101) 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, 159265 + ... + 159598.

It is an arithmetic number, because the mean of its divisors is an integer number (13392288).

Almost surely, 2^53250121 is an apocalyptic number.

It is an amenable number.

53250121 is a deficient number, since it is larger than the sum of its proper divisors (319031).

53250121 is a wasteful number, since it uses less digits than its factorization.

53250121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319030.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 53250121 is about 7297.2680504419. The cubic root of 53250121 is about 376.2185451421.

Adding to 53250121 its reverse (12105235), we get a palindrome (65355356).

It can be divided in two parts, 532 and 50121, that added together give a cube (50653 = 37³).

The spelling of 53250121 in words is "fifty-three million, two hundred fifty thousand, one hundred twenty-one".