1375055537 has 4 divisors (see below), whose sum is σ = 1375925760. Its totient is φ = 1374185316.

The previous prime is 1375055533. The next prime is 1375055551. The reversal of 1375055537 is 7355505731.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1375055537 - 2² = 1375055533 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1375055494 and 1375055503.

It is not an unprimeable number, because it can be changed into a prime (1375055533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 432737 + ... + 435902.

It is an arithmetic number, because the mean of its divisors is an integer number (343981440).

Almost surely, 2^1375055537 is an apocalyptic number.

It is an amenable number.

1375055537 is a deficient number, since it is larger than the sum of its proper divisors (870223).

1375055537 is an equidigital number, since it uses as much as digits as its factorization.

1375055537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 870222.

The product of its (nonzero) digits is 275625, while the sum is 41.

The square root of 1375055537 is about 37081.7412886720. The cubic root of 1375055537 is about 1112.0050163779.

The spelling of 1375055537 in words is "one billion, three hundred seventy-five million, fifty-five thousand, five hundred thirty-seven".