225636452140 has 48 divisors (see below), whose sum is σ = 520335938304. Its totient is φ = 81506232000.

The previous prime is 225636452101. The next prime is 225636452149. The reversal of 225636452140 is 41254636522.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 225636452093 and 225636452102.

It is not an unprimeable number, because it can be changed into a prime (225636452149) 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, 3362874 + ... + 3429313.

It is an arithmetic number, because the mean of its divisors is an integer number (10840332048).

Almost surely, 2^225636452140 is an apocalyptic number.

225636452140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225636452140 is an abundant number, since it is smaller than the sum of its proper divisors (294699486164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

225636452140 is a wasteful number, since it uses less digits than its factorization.

225636452140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6792358 (or 6792356 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 40.

It can be divided in two parts, 225636 and 452140, that added together give a palindrome (677776).

The spelling of 225636452140 in words is "two hundred twenty-five billion, six hundred thirty-six million, four hundred fifty-two thousand, one hundred forty".