226904559025 has 27 divisors (see below), whose sum is σ = 287617335019. Its totient is φ = 177573794480.

The previous prime is 226904559023. The next prime is 226904559061. The reversal of 226904559025 is 520955409622.

It is a happy number.

The square root of 226904559025 is 476345.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 81685641249 + 145218917776 = 285807^2 + 381076^2 .

It is not a de Polignac number, because 226904559025 - 2¹ = 226904559023 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 226904559025.

It is not an unprimeable number, because it can be changed into a prime (226904559023) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 111940062 + ... + 111942088.

Almost surely, 2^226904559025 is an apocalyptic number.

226904559025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

226904559025 is the 476345-th square number.

226904559025 is the 238173-rd centered octagonal number.

It is an amenable number.

226904559025 is a deficient number, since it is larger than the sum of its proper divisors (60712775994).

226904559025 is an frugal number, since it uses more digits than its factorization.

226904559025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4158 (or 2079 counting only the distinct ones).

The product of its (nonzero) digits is 1944000, while the sum is 49.

Multiplying 226904559025 by its sum of digits (49), we get a square (11118323392225 = 3334415²).

The spelling of 226904559025 in words is "two hundred twenty-six billion, nine hundred four million, five hundred fifty-nine thousand, twenty-five".