1225025 has 12 divisors (see below), whose sum is σ = 1599600. Its totient is φ = 928080.

The previous prime is 1225019. The next prime is 1225061. The reversal of 1225025 is 5205221.

It is not a de Polignac number, because 1225025 - 2⁴ = 1225009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1224994 and 1225012.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 815 + ... + 1764.

It is an arithmetic number, because the mean of its divisors is an integer number (133300).

2^1225025 is an apocalyptic number.

It is an amenable number.

1225025 is a deficient number, since it is larger than the sum of its proper divisors (374575).

1225025 is a wasteful number, since it uses less digits than its factorization.

1225025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2608 (or 2603 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 1225025 is about 1106.8084748501. The cubic root of 1225025 is about 106.9994759342. Note that the first 3 decimals are identical.

The spelling of 1225025 in words is "one million, two hundred twenty-five thousand, twenty-five".