225220034525 has 24 divisors (see below), whose sum is σ = 295832018664. Its totient is φ = 169502105600.

The previous prime is 225220034497. The next prime is 225220034537. The reversal of 225220034525 is 525430022522.

It can be written as a sum of positive squares in 12 ways, for example, as 5950733881 + 219269300644 = 77141^2 + 468262^2 .

It is not a de Polignac number, because 225220034525 - 2⁶ = 225220034461 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 225220034491 and 225220034500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 849455 + ... + 1082595.

It is an arithmetic number, because the mean of its divisors is an integer number (12326334111).

Almost surely, 2^225220034525 is an apocalyptic number.

225220034525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

225220034525 is a deficient number, since it is larger than the sum of its proper divisors (70611984139).

225220034525 is a wasteful number, since it uses less digits than its factorization.

225220034525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235441 (or 235436 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 32.

The spelling of 225220034525 in words is "two hundred twenty-five billion, two hundred twenty million, thirty-four thousand, five hundred twenty-five".