1251250001375 has 32 divisors (see below), whose sum is σ = 1720386727488. Its totient is φ = 900990000000.

The previous prime is 1251250001341. The next prime is 1251250001381. The reversal of 1251250001375 is 5731000521521.

It is not a de Polignac number, because 1251250001375 - 2¹² = 1251249997279 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4366076 + ... + 4643825.

It is an arithmetic number, because the mean of its divisors is an integer number (53762085234).

Almost surely, 2^{1251250001375} is an apocalyptic number.

1251250001375 is a deficient number, since it is larger than the sum of its proper divisors (469136726113).

1251250001375 is a wasteful number, since it uses less digits than its factorization.

1251250001375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9010028 (or 9010018 counting only the distinct ones).

The product of its (nonzero) digits is 10500, while the sum is 32.

Adding to 1251250001375 its reverse (5731000521521), we get a palindrome (6982250522896).

The spelling of 1251250001375 in words is "one trillion, two hundred fifty-one billion, two hundred fifty million, one thousand, three hundred seventy-five".