1375252506 has 20 divisors (see below), whose sum is σ = 3081584682. Its totient is φ = 458417448.

The previous prime is 1375252499. The next prime is 1375252507. The reversal of 1375252506 is 6052525731.

It can be written as a sum of positive squares in only one way, i.e., 1216265625 + 158986881 = 34875^2 + 12609^2 .

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 9 ways as a sum of consecutive naturals, for example, 4244445 + ... + 4244768.

Almost surely, 2^1375252506 is an apocalyptic number.

1375252506 is an abundant number, since it is smaller than the sum of its proper divisors (1706332176).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1375252506 is an equidigital number, since it uses as much as digits as its factorization.

1375252506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8489227 (or 8489218 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 36.

The square root of 1375252506 is about 37084.3970693876. The cubic root of 1375252506 is about 1112.0581100052.

The spelling of 1375252506 in words is "one billion, three hundred seventy-five million, two hundred fifty-two thousand, five hundred six".