1225504570 has 16 divisors (see below), whose sum is σ = 2206426248. Its totient is φ = 490086720.

The previous prime is 1225504529. The next prime is 1225504589. The reversal of 1225504570 is 754055221.

It can be written as a sum of positive squares in 4 ways, for example, as 831918649 + 393585921 = 28843^2 + 19839^2 .

It is a super-2 number, since 2×1225504570² = 3003722902181769800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40180 + ... + 63760.

Almost surely, 2^1225504570 is an apocalyptic number.

1225504570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1225504570 is a deficient number, since it is larger than the sum of its proper divisors (980921678).

1225504570 is a wasteful number, since it uses less digits than its factorization.

1225504570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28785.

The product of its (nonzero) digits is 14000, while the sum is 31.

The square root of 1225504570 is about 35007.2074007625. The cubic root of 1225504570 is about 1070.1343674971.

Adding to 1225504570 its reverse (754055221), we get a palindrome (1979559791).

The spelling of 1225504570 in words is "one billion, two hundred twenty-five million, five hundred four thousand, five hundred seventy".