1552669049 has 4 divisors (see below), whose sum is σ = 1552752036. Its totient is φ = 1552586064.

The previous prime is 1552669021. The next prime is 1552669067. The reversal of 1552669049 is 9409662551.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9409662551 = 73 ⋅128899487.

It can be written as a sum of positive squares in 2 ways, for example, as 598291600 + 954377449 = 24460^2 + 30893^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1552669049 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1552668994 and 1552669012.

It is not an unprimeable number, because it can be changed into a prime (552669049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1247 + ... + 55739.

It is an arithmetic number, because the mean of its divisors is an integer number (388188009).

Almost surely, 2^1552669049 is an apocalyptic number.

It is an amenable number.

1552669049 is a deficient number, since it is larger than the sum of its proper divisors (82987).

1552669049 is an equidigital number, since it uses as much as digits as its factorization.

1552669049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82986.

The product of its (nonzero) digits is 583200, while the sum is 47.

The square root of 1552669049 is about 39403.9217464455. The cubic root of 1552669049 is about 1157.9584207068.

The spelling of 1552669049 in words is "one billion, five hundred fifty-two million, six hundred sixty-nine thousand, forty-nine".