1375750625 has 10 divisors (see below), whose sum is σ = 1719138762. Its totient is φ = 1100600000.

The previous prime is 1375750601. The next prime is 1375750631. The reversal of 1375750625 is 5260575731.

It can be written as a sum of positive squares in 5 ways, for example, as 699126481 + 676624144 = 26441^2 + 26012^2 .

It is not a de Polignac number, because 1375750625 - 2⁶ = 1375750561 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1099976 + ... + 1101225.

Almost surely, 2^1375750625 is an apocalyptic number.

It is an amenable number.

1375750625 is a deficient number, since it is larger than the sum of its proper divisors (343388137).

1375750625 is an frugal number, since it uses more digits than its factorization.

1375750625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2201221 (or 2201206 counting only the distinct ones).

The product of its (nonzero) digits is 220500, while the sum is 41.

The square root of 1375750625 is about 37091.1124799459. The cubic root of 1375750625 is about 1112.1923569661.

The spelling of 1375750625 in words is "one billion, three hundred seventy-five million, seven hundred fifty thousand, six hundred twenty-five".