253107292205 has 4 divisors (see below), whose sum is σ = 303728750652. Its totient is φ = 202485833760.

The previous prime is 253107292159. The next prime is 253107292219. The reversal of 253107292205 is 502292701352.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 102888260644 + 150219031561 = 320762^2 + 387581^2 .

It is not a de Polignac number, because 253107292205 - 2¹⁰ = 253107291181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25310729216 + ... + 25310729225.

It is an arithmetic number, because the mean of its divisors is an integer number (75932187663).

Almost surely, 2^253107292205 is an apocalyptic number.

It is an amenable number.

253107292205 is a deficient number, since it is larger than the sum of its proper divisors (50621458447).

253107292205 is an equidigital number, since it uses as much as digits as its factorization.

253107292205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50621458446.

The product of its (nonzero) digits is 75600, while the sum is 38.

Adding to 253107292205 its reverse (502292701352), we get a palindrome (755399993557).

The spelling of 253107292205 in words is "two hundred fifty-three billion, one hundred seven million, two hundred ninety-two thousand, two hundred five".