225131752064 has 16 divisors (see below), whose sum is σ = 448504662570. Its totient is φ = 112565875968.

The previous prime is 225131752061. The next prime is 225131752067. The reversal of 225131752064 is 460257131522.

It is an interprime number because it is at equal distance from previous prime (225131752061) and next prime (225131752067).

It can be written as a sum of positive squares in only one way, i.e., 219016512064 + 6115240000 = 467992^2 + 78200^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is not an unprimeable number, because it can be changed into a prime (225131752061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 879420779 + ... + 879421034.

Almost surely, 2^225131752064 is an apocalyptic number.

It is an amenable number.

225131752064 is a deficient number, since it is larger than the sum of its proper divisors (223372910506).

225131752064 is an equidigital number, since it uses as much as digits as its factorization.

225131752064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1758841827 (or 1758841815 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 38.

Adding to 225131752064 its reverse (460257131522), we get a palindrome (685388883586).

The spelling of 225131752064 in words is "two hundred twenty-five billion, one hundred thirty-one million, seven hundred fifty-two thousand, sixty-four".