1375744520525 has 24 divisors (see below), whose sum is σ = 1766151021600. Its totient is φ = 1061799300800.

The previous prime is 1375744520509. The next prime is 1375744520537. The reversal of 1375744520525 is 5250254475731.

It is not a de Polignac number, because 1375744520525 - 2⁴ = 1375744520509 is a prime.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 159170 + ... + 1666380.

It is an arithmetic number, because the mean of its divisors is an integer number (73589625900).

Almost surely, 2^{1375744520525} is an apocalyptic number.

It is an amenable number.

1375744520525 is a deficient number, since it is larger than the sum of its proper divisors (390406501075).

1375744520525 is a wasteful number, since it uses less digits than its factorization.

1375744520525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1508509 (or 1508504 counting only the distinct ones).

The product of its (nonzero) digits is 5880000, while the sum is 50.

The spelling of 1375744520525 in words is "one trillion, three hundred seventy-five billion, seven hundred forty-four million, five hundred twenty thousand, five hundred twenty-five".