1225565704 has 64 divisors (see below), whose sum is σ = 2582173440. Its totient is φ = 540509760.

The previous prime is 1225565699. The next prime is 1225565713. The reversal of 1225565704 is 4075655221.

It is a super-2 number, since 2×1225565704² = 3004022589642031232, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 615799 + ... + 617785.

It is an arithmetic number, because the mean of its divisors is an integer number (40346460).

Almost surely, 2^1225565704 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1225565704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1291086720).

1225565704 is an abundant number, since it is smaller than the sum of its proper divisors (1356607736).

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

1225565704 is a wasteful number, since it uses less digits than its factorization.

1225565704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2210 (or 2206 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 37.

The square root of 1225565704 is about 35008.0805529238. The cubic root of 1225565704 is about 1070.1521616662.

The spelling of 1225565704 in words is "one billion, two hundred twenty-five million, five hundred sixty-five thousand, seven hundred four".