52121167604157 has 4 divisors (see below), whose sum is σ = 69494890138880. Its totient is φ = 34747445069436.

The previous prime is 52121167604123. The next prime is 52121167604171. The reversal of 52121167604157 is 75140676112125.

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.

It is not a de Polignac number, because 52121167604157 - 2¹⁰ = 52121167603133 is a prime.

It is a super-2 number, since 2×52121167604157² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52121167604057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8686861267357 + ... + 8686861267362.

It is an arithmetic number, because the mean of its divisors is an integer number (17373722534720).

Almost surely, 2^{52121167604157} is an apocalyptic number.

It is an amenable number.

52121167604157 is a deficient number, since it is larger than the sum of its proper divisors (17373722534723).

52121167604157 is a wasteful number, since it uses less digits than its factorization.

52121167604157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17373722534722.

The product of its (nonzero) digits is 705600, while the sum is 48.

The spelling of 52121167604157 in words is "fifty-two trillion, one hundred twenty-one billion, one hundred sixty-seven million, six hundred four thousand, one hundred fifty-seven".