1575397952 has 28 divisors (see below), whose sum is σ = 3158421420. Its totient is φ = 779575296.

The previous prime is 1575397937. The next prime is 1575398003. The reversal of 1575397952 is 2597935751.

It can be written as a sum of positive squares in 2 ways, for example, as 969450496 + 605947456 = 31136^2 + 24616^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1575397894 and 1575397903.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120677 + ... + 133092.

It is an arithmetic number, because the mean of its divisors is an integer number (112800765).

Almost surely, 2^1575397952 is an apocalyptic number.

It is an amenable number.

1575397952 is an abundant number, since it is smaller than the sum of its proper divisors (1583023468).

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

1575397952 is an equidigital number, since it uses as much as digits as its factorization.

1575397952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253878 (or 253868 counting only the distinct ones).

The product of its digits is 2976750, while the sum is 53.

The square root of 1575397952 is about 39691.2830732391. The cubic root of 1575397952 is about 1163.5813691221.

The spelling of 1575397952 in words is "one billion, five hundred seventy-five million, three hundred ninety-seven thousand, nine hundred fifty-two".