1375000025 has 18 divisors (see below), whose sum is σ = 1983369150. Its totient is φ = 942856320.

The previous prime is 1375000013. The next prime is 1375000027. The reversal of 1375000025 is 5200005731.

It can be written as a sum of positive squares in 3 ways, for example, as 196588441 + 1178411584 = 14021^2 + 34328^2 .

It is not a de Polignac number, because 1375000025 - 2¹² = 1374995929 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1375000027) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 560000 + ... + 562449.

It is an arithmetic number, because the mean of its divisors is an integer number (110187175).

Almost surely, 2^1375000025 is an apocalyptic number.

It is an amenable number.

1375000025 is a deficient number, since it is larger than the sum of its proper divisors (608369125).

1375000025 is a wasteful number, since it uses less digits than its factorization.

1375000025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1122473 (or 1122461 counting only the distinct ones).

The product of its (nonzero) digits is 1050, while the sum is 23.

The square root of 1375000025 is about 37080.9927725782. The cubic root of 1375000025 is about 1111.9900520240.

Adding to 1375000025 its reverse (5200005731), we get a palindrome (6575005756).

The spelling of 1375000025 in words is "one billion, three hundred seventy-five million, twenty-five", and thus it is an aban number.