3555126225 has 72 divisors (see below), whose sum is σ = 7291914240. Its totient is φ = 1621935360.

The previous prime is 3555126217. The next prime is 3555126229. The reversal of 3555126225 is 5226215553.

It is not a de Polignac number, because 3555126225 - 2³ = 3555126217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3555126225.

It is not an unprimeable number, because it can be changed into a prime (3555126229) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 894192 + ... + 898158.

Almost surely, 2^3555126225 is an apocalyptic number.

3555126225 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3555126225 is an abundant number, since it is smaller than the sum of its proper divisors (3736788015).

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

3555126225 is a wasteful number, since it uses less digits than its factorization.

3555126225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4559 (or 4551 counting only the distinct ones).

The product of its digits is 90000, while the sum is 36.

The square root of 3555126225 is about 59624.8792451607. The cubic root of 3555126225 is about 1526.2242216648.

It can be divided in two parts, 35551 and 26225, that added together give a triangular number (61776 = T₃₅₁).

The spelling of 3555126225 in words is "three billion, five hundred fifty-five million, one hundred twenty-six thousand, two hundred twenty-five".