225436623261 has 8 divisors (see below), whose sum is σ = 300597610560. Its totient is φ = 150283359072.

The previous prime is 225436623259. The next prime is 225436623281. The reversal of 225436623261 is 162326634522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 225436623261 - 2¹ = 225436623259 is a prime.

It is a super-2 number, since 2×225436623261² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225436623211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1862320 + ... + 1979673.

It is an arithmetic number, because the mean of its divisors is an integer number (37574701320).

Almost surely, 2^225436623261 is an apocalyptic number.

It is an amenable number.

225436623261 is a deficient number, since it is larger than the sum of its proper divisors (75160987299).

225436623261 is a wasteful number, since it uses less digits than its factorization.

225436623261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3861555.

The product of its digits is 622080, while the sum is 42.

The spelling of 225436623261 in words is "two hundred twenty-five billion, four hundred thirty-six million, six hundred twenty-three thousand, two hundred sixty-one".