20150352449 has 2 divisors, whose sum is σ = 20150352450. Its totient is φ = 20150352448.

The previous prime is 20150352401. The next prime is 20150352491. The reversal of 20150352449 is 94425305102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14401680049 + 5748672400 = 120007^2 + 75820^2 .

It is a cyclic number.

It is not a de Polignac number, because 20150352449 - 2⁸ = 20150352193 is a prime.

It is not a weakly prime, because it can be changed into another prime (20150352349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10075176224 + 10075176225.

It is an arithmetic number, because the mean of its divisors is an integer number (10075176225).

Almost surely, 2^20150352449 is an apocalyptic number.

It is an amenable number.

20150352449 is a deficient number, since it is larger than the sum of its proper divisors (1).

20150352449 is an equidigital number, since it uses as much as digits as its factorization.

20150352449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43200, while the sum is 35.

The spelling of 20150352449 in words is "twenty billion, one hundred fifty million, three hundred fifty-two thousand, four hundred forty-nine".