53011121 has 8 divisors (see below), whose sum is σ = 57310080. Its totient is φ = 48863088.

The previous prime is 53011103. The next prime is 53011129. The reversal of 53011121 is 12111035.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-53011121 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 53011096 and 53011105.

It is not an unprimeable number, because it can be changed into a prime (53011129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37001 + ... + 38406.

It is an arithmetic number, because the mean of its divisors is an integer number (7163760).

Almost surely, 2^53011121 is an apocalyptic number.

It is an amenable number.

53011121 is a deficient number, since it is larger than the sum of its proper divisors (4298959).

53011121 is a wasteful number, since it uses less digits than its factorization.

53011121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75463.

The product of its (nonzero) digits is 30, while the sum is 14.

The square root of 53011121 is about 7280.8736426338. The cubic root of 53011121 is about 375.6548463230.

Adding to 53011121 its reverse (12111035), we get a palindrome (65122156).

The spelling of 53011121 in words is "fifty-three million, eleven thousand, one hundred twenty-one".