1375025251 has 2 divisors, whose sum is σ = 1375025252. Its totient is φ = 1375025250.

The previous prime is 1375025237. The next prime is 1375025287. The reversal of 1375025251 is 1525205731.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1375025251 - 2²¹ = 1372928099 is a prime.

It is a super-2 number, since 2×1375025251² = 3781388881775226002, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1375025551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 687512625 + 687512626.

It is an arithmetic number, because the mean of its divisors is an integer number (687512626).

Almost surely, 2^1375025251 is an apocalyptic number.

1375025251 is a deficient number, since it is larger than the sum of its proper divisors (1).

1375025251 is an equidigital number, since it uses as much as digits as its factorization.

1375025251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10500, while the sum is 31.

The square root of 1375025251 is about 37081.3329183297. The cubic root of 1375025251 is about 1111.9968522395.

The spelling of 1375025251 in words is "one billion, three hundred seventy-five million, twenty-five thousand, two hundred fifty-one".