35561431 has 2 divisors, whose sum is σ = 35561432. Its totient is φ = 35561430.

The previous prime is 35561423. The next prime is 35561437. The reversal of 35561431 is 13416553.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 35561431 - 2³ = 35561423 is a prime.

It is a super-2 number, since 2×35561431² = 2529230749535522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 35561431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (35561437) by changing a digit.

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 as a sum of consecutive naturals, namely, 17780715 + 17780716.

It is an arithmetic number, because the mean of its divisors is an integer number (17780716).

Almost surely, 2^35561431 is an apocalyptic number.

35561431 is a deficient number, since it is larger than the sum of its proper divisors (1).

35561431 is an equidigital number, since it uses as much as digits as its factorization.

35561431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5400, while the sum is 28.

The square root of 35561431 is about 5963.3405906421. The cubic root of 35561431 is about 328.8463881948.

Adding to 35561431 its reverse (13416553), we get a palindrome (48977984).

The spelling of 35561431 in words is "thirty-five million, five hundred sixty-one thousand, four hundred thirty-one".