375839561 has 2 divisors, whose sum is σ = 375839562. Its totient is φ = 375839560.

The previous prime is 375839543. The next prime is 375839593. The reversal of 375839561 is 165938573.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 373455625 + 2383936 = 19325^2 + 1544^2 .

It is a cyclic number.

It is not a de Polignac number, because 375839561 - 2¹⁰ = 375838537 is a prime.

It is a super-2 number, since 2×375839561² = 282510751225345442, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (375869561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 187919780 + 187919781.

It is an arithmetic number, because the mean of its divisors is an integer number (187919781).

Almost surely, 2^375839561 is an apocalyptic number.

It is an amenable number.

375839561 is a deficient number, since it is larger than the sum of its proper divisors (1).

375839561 is an equidigital number, since it uses as much as digits as its factorization.

375839561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 680400, while the sum is 47.

The square root of 375839561 is about 19386.5819834235. The cubic root of 375839561 is about 721.6625424782.

The spelling of 375839561 in words is "three hundred seventy-five million, eight hundred thirty-nine thousand, five hundred sixty-one".