252154506501 has 12 divisors (see below), whose sum is σ = 364556422828. Its totient is φ = 167949198144.

The previous prime is 252154506481. The next prime is 252154506503. The reversal of 252154506501 is 105605451252.

252154506501 is a `hidden beast` number, since 2 + 52 + 1 + 54 + 50 + 6 + 501 = 666.

252154506501 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 229370113476 + 22784393025 = 478926^2 + 150945^2 .

It is not a de Polignac number, because 252154506501 - 2⁵ = 252154506469 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 (252154506503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12806800 + ... + 12826473.

Almost surely, 2^252154506501 is an apocalyptic number.

It is an amenable number.

252154506501 is a deficient number, since it is larger than the sum of its proper divisors (112401916327).

252154506501 is a wasteful number, since it uses less digits than its factorization.

252154506501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25634372 (or 25634369 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 36.

Adding to 252154506501 its reverse (105605451252), we get a palindrome (357759957753).

The spelling of 252154506501 in words is "two hundred fifty-two billion, one hundred fifty-four million, five hundred six thousand, five hundred one".