1375252505 has 8 divisors (see below), whose sum is σ = 1800330624. Its totient is φ = 1000183600.

The previous prime is 1375252499. The next prime is 1375252507. The reversal of 1375252505 is 5052525731.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1375252505 - 2⁶ = 1375252441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1375252507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12502241 + ... + 12502350.

It is an arithmetic number, because the mean of its divisors is an integer number (225041328).

Almost surely, 2^1375252505 is an apocalyptic number.

It is an amenable number.

1375252505 is a deficient number, since it is larger than the sum of its proper divisors (425078119).

1375252505 is a wasteful number, since it uses less digits than its factorization.

1375252505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25004607.

The product of its (nonzero) digits is 52500, while the sum is 35.

The square root of 1375252505 is about 37084.3970559048. The cubic root of 1375252505 is about 1112.0581097357.

The spelling of 1375252505 in words is "one billion, three hundred seventy-five million, two hundred fifty-two thousand, five hundred five".