225520352131 has 8 divisors (see below), whose sum is σ = 226567377504. Its totient is φ = 224474003520.

The previous prime is 225520352129. The next prime is 225520352137. The reversal of 225520352131 is 131253025522.

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

It is a cyclic number.

It is not a de Polignac number, because 225520352131 - 2¹ = 225520352129 is a prime.

It is a super-2 number, since 2×225520352131² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 225520352093 and 225520352102.

It is not an unprimeable number, because it can be changed into a prime (225520352137) 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, 505041 + ... + 840301.

It is an arithmetic number, because the mean of its divisors is an integer number (28320922188).

Almost surely, 2^225520352131 is an apocalyptic number.

225520352131 is a deficient number, since it is larger than the sum of its proper divisors (1047025373).

225520352131 is a wasteful number, since it uses less digits than its factorization.

225520352131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338381.

The product of its (nonzero) digits is 18000, while the sum is 31.

Adding to 225520352131 its reverse (131253025522), we get a palindrome (356773377653).

The spelling of 225520352131 in words is "two hundred twenty-five billion, five hundred twenty million, three hundred fifty-two thousand, one hundred thirty-one".