1225475511 has 16 divisors (see below), whose sum is σ = 1761477984. Its totient is φ = 753358464.

The previous prime is 1225475501. The next prime is 1225475561. The reversal of 1225475511 is 1155745221.

It is not a de Polignac number, because 1225475511 - 2⁵ = 1225475479 is a prime.

It is a super-2 number, since 2×1225475511² = 3003580456121422242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225475501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23125 + ... + 54641.

It is an arithmetic number, because the mean of its divisors is an integer number (110092374).

Almost surely, 2^1225475511 is an apocalyptic number.

1225475511 is a deficient number, since it is larger than the sum of its proper divisors (536002473).

1225475511 is a wasteful number, since it uses less digits than its factorization.

1225475511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32530.

The product of its digits is 14000, while the sum is 33.

The square root of 1225475511 is about 35006.7923551987. The cubic root of 1225475511 is about 1070.1259091360.

The spelling of 1225475511 in words is "one billion, two hundred twenty-five million, four hundred seventy-five thousand, five hundred eleven".