1520245250 has 64 divisors (see below), whose sum is σ = 2958564960. Its totient is φ = 584236800.

The previous prime is 1520245241. The next prime is 1520245253. The reversal of 1520245250 is 525420251.

It can be written as a sum of positive squares in 16 ways, for example, as 150283081 + 1369962169 = 12259^2 + 37013^2 .

It is a super-2 number, since 2×1520245250² = 4622291240295125000, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1520245253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2007872 + ... + 2008628.

Almost surely, 2^1520245250 is an apocalyptic number.

1520245250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1520245250 is a deficient number, since it is larger than the sum of its proper divisors (1438319710).

1520245250 is a wasteful number, since it uses less digits than its factorization.

1520245250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1080 (or 1070 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 1520245250 is about 38990.3225172606. The cubic root of 1520245250 is about 1149.8412509287.

The spelling of 1520245250 in words is "one billion, five hundred twenty million, two hundred forty-five thousand, two hundred fifty".