225136536401 has 4 divisors (see below), whose sum is σ = 257298898752. Its totient is φ = 192974174052.

The previous prime is 225136536379. The next prime is 225136536409. The reversal of 225136536401 is 104635631522.

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, and also an emirpimes, since its reverse is a distinct semiprime: 104635631522 = 2 ⋅52317815761.

It is a cyclic number.

It is not a de Polignac number, because 225136536401 - 2¹⁴ = 225136520017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (225136536409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16081181165 + ... + 16081181178.

It is an arithmetic number, because the mean of its divisors is an integer number (64324724688).

Almost surely, 2^225136536401 is an apocalyptic number.

It is an amenable number.

225136536401 is a deficient number, since it is larger than the sum of its proper divisors (32162362351).

225136536401 is an equidigital number, since it uses as much as digits as its factorization.

225136536401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32162362350.

The product of its (nonzero) digits is 129600, while the sum is 38.

The spelling of 225136536401 in words is "two hundred twenty-five billion, one hundred thirty-six million, five hundred thirty-six thousand, four hundred one".