1505488225 has 24 divisors (see below), whose sum is σ = 1915736760. Its totient is φ = 1172928000.

The previous prime is 1505488219. The next prime is 1505488241. The reversal of 1505488225 is 5228845051.

It can be written as a sum of positive squares in 12 ways, for example, as 566249616 + 939238609 = 23796^2 + 30647^2 .

It is not a de Polignac number, because 1505488225 - 2⁷ = 1505488097 is a prime.

It is a super-2 number, since 2×1505488225² = 4532989591227301250, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 840631 + ... + 842419.

It is an arithmetic number, because the mean of its divisors is an integer number (79822365).

Almost surely, 2^1505488225 is an apocalyptic number.

It is an amenable number.

1505488225 is a deficient number, since it is larger than the sum of its proper divisors (410248535).

1505488225 is a wasteful number, since it uses less digits than its factorization.

1505488225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2661 (or 2656 counting only the distinct ones).

The product of its (nonzero) digits is 128000, while the sum is 40.

The square root of 1505488225 is about 38800.6214512087. The cubic root of 1505488225 is about 1146.1086431645.

The spelling of 1505488225 in words is "one billion, five hundred five million, four hundred eighty-eight thousand, two hundred twenty-five".