35642521 has 2 divisors, whose sum is σ = 35642522. Its totient is φ = 35642520.

The previous prime is 35642513. The next prime is 35642527. The reversal of 35642521 is 12524653.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30647296 + 4995225 = 5536^2 + 2235^2 .

It is a cyclic number.

It is not a de Polignac number, because 35642521 - 2³ = 35642513 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 35642521.

It is not a weakly prime, because it can be changed into another prime (35642527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17821260 + 17821261.

It is an arithmetic number, because the mean of its divisors is an integer number (17821261).

Almost surely, 2^35642521 is an apocalyptic number.

It is an amenable number.

35642521 is a deficient number, since it is larger than the sum of its proper divisors (1).

35642521 is an equidigital number, since it uses as much as digits as its factorization.

35642521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7200, while the sum is 28.

The square root of 35642521 is about 5970.1357606004. The cubic root of 35642521 is about 329.0961523330.

It can be divided in two parts, 35642 and 521, that added together give a palindrome (36163).

The spelling of 35642521 in words is "thirty-five million, six hundred forty-two thousand, five hundred twenty-one".