252404355135 has 16 divisors (see below), whose sum is σ = 403859898720. Its totient is φ = 134611345920.

The previous prime is 252404355083. The next prime is 252404355139. The reversal of 252404355135 is 531553404252.

It is not a de Polignac number, because 252404355135 - 2²³ = 252395966527 is a prime.

It is a super-2 number, since 2×252404355135² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 252404355093 and 252404355102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252404355139) 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, 246595 + ... + 752075.

It is an arithmetic number, because the mean of its divisors is an integer number (25241243670).

Almost surely, 2^252404355135 is an apocalyptic number.

252404355135 is a deficient number, since it is larger than the sum of its proper divisors (151455543585).

252404355135 is a wasteful number, since it uses less digits than its factorization.

252404355135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538778.

The product of its (nonzero) digits is 360000, while the sum is 39.

Adding to 252404355135 its reverse (531553404252), we get a palindrome (783957759387).

The spelling of 252404355135 in words is "two hundred fifty-two billion, four hundred four million, three hundred fifty-five thousand, one hundred thirty-five".