53001292921 has 16 divisors (see below), whose sum is σ = 56506309776. Its totient is φ = 49539649536.

The previous prime is 53001292919. The next prime is 53001292951. The reversal of 53001292921 is 12929210035.

It can be written as a sum of positive squares in 8 ways, for example, as 348942400 + 52652350521 = 18680^2 + 229461^2 .

It is a cyclic number.

It is not a de Polignac number, because 53001292921 - 2¹ = 53001292919 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53001292951) 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, 6607105 + ... + 6615121.

It is an arithmetic number, because the mean of its divisors is an integer number (3531644361).

Almost surely, 2^53001292921 is an apocalyptic number.

It is an amenable number.

53001292921 is a deficient number, since it is larger than the sum of its proper divisors (3505016855).

53001292921 is a wasteful number, since it uses less digits than its factorization.

53001292921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10668.

The product of its (nonzero) digits is 9720, while the sum is 34.

The spelling of 53001292921 in words is "fifty-three billion, one million, two hundred ninety-two thousand, nine hundred twenty-one".