225131747740 has 24 divisors (see below), whose sum is σ = 472950026640. Its totient is φ = 90019678848.

The previous prime is 225131747689. The next prime is 225131747837. The reversal of 225131747740 is 47747131522.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2007822 + ... + 2116981.

It is an arithmetic number, because the mean of its divisors is an integer number (19706251110).

Almost surely, 2^225131747740 is an apocalyptic number.

225131747740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225131747740 is an abundant number, since it is smaller than the sum of its proper divisors (247818278900).

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

225131747740 is a wasteful number, since it uses less digits than its factorization.

225131747740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4127541 (or 4127539 counting only the distinct ones).

The product of its (nonzero) digits is 329280, while the sum is 43.

The spelling of 225131747740 in words is "two hundred twenty-five billion, one hundred thirty-one million, seven hundred forty-seven thousand, seven hundred forty".