1225435225 has 48 divisors (see below), whose sum is σ = 1856131200. Its totient is φ = 783406080.

The previous prime is 1225435219. The next prime is 1225435231. The reversal of 1225435225 is 5225345221.

It is an interprime number because it is at equal distance from previous prime (1225435219) and next prime (1225435231).

It is not a de Polignac number, because 1225435225 - 2²¹ = 1223338073 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 322386 + ... + 326164.

It is an arithmetic number, because the mean of its divisors is an integer number (38669400).

Almost surely, 2^1225435225 is an apocalyptic number.

It is an amenable number.

1225435225 is a deficient number, since it is larger than the sum of its proper divisors (630695975).

1225435225 is a wasteful number, since it uses less digits than its factorization.

1225435225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3922 (or 3917 counting only the distinct ones).

The product of its digits is 24000, while the sum is 31.

The square root of 1225435225 is about 35006.2169478508. The cubic root of 1225435225 is about 1070.1141826499.

The spelling of 1225435225 in words is "one billion, two hundred twenty-five million, four hundred thirty-five thousand, two hundred twenty-five".