1375542550 has 12 divisors (see below), whose sum is σ = 2558509236. Its totient is φ = 550217000.

The previous prime is 1375542527. The next prime is 1375542583. The reversal of 1375542550 is 552455731.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13755376 + ... + 13755475.

It is an arithmetic number, because the mean of its divisors is an integer number (213209103).

Almost surely, 2^1375542550 is an apocalyptic number.

1375542550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1375542550 is a deficient number, since it is larger than the sum of its proper divisors (1182966686).

1375542550 is a wasteful number, since it uses less digits than its factorization.

1375542550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27510863 (or 27510858 counting only the distinct ones).

The product of its (nonzero) digits is 105000, while the sum is 37.

The square root of 1375542550 is about 37088.3074566635. The cubic root of 1375542550 is about 1112.1362830700.

The spelling of 1375542550 in words is "one billion, three hundred seventy-five million, five hundred forty-two thousand, five hundred fifty".