53053340021 has 8 divisors (see below), whose sum is σ = 57878158944. Its totient is φ = 48228819120.

The previous prime is 53053340003. The next prime is 53053340029. The reversal of 53053340021 is 12004335035.

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

It is a cyclic number.

It is not a de Polignac number, because 53053340021 - 2⁶ = 53053339957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53053340029) 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, 472130 + ... + 573596.

It is an arithmetic number, because the mean of its divisors is an integer number (7234769868).

Almost surely, 2^53053340021 is an apocalyptic number.

It is an amenable number.

53053340021 is a deficient number, since it is larger than the sum of its proper divisors (4824818923).

53053340021 is a wasteful number, since it uses less digits than its factorization.

53053340021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149011.

The product of its (nonzero) digits is 5400, while the sum is 26.

Adding to 53053340021 its reverse (12004335035), we get a palindrome (65057675056).

The spelling of 53053340021 in words is "fifty-three billion, fifty-three million, three hundred forty thousand, twenty-one".