1552165361 has 4 divisors (see below), whose sum is σ = 1552380324. Its totient is φ = 1551950400.

The previous prime is 1552165343. The next prime is 1552165379. The reversal of 1552165361 is 1635612551.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1552165343) and next prime (1552165379).

It can be written as a sum of positive squares in 2 ways, for example, as 824838400 + 727326961 = 28720^2 + 26969^2 .

It is a cyclic number.

It is not a de Polignac number, because 1552165361 - 2²⁶ = 1485056497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1552165661) 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, 96260 + ... + 111221.

It is an arithmetic number, because the mean of its divisors is an integer number (388095081).

Almost surely, 2^1552165361 is an apocalyptic number.

It is an amenable number.

1552165361 is a deficient number, since it is larger than the sum of its proper divisors (214963).

1552165361 is an equidigital number, since it uses as much as digits as its factorization.

1552165361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214962.

The product of its digits is 27000, while the sum is 35.

The square root of 1552165361 is about 39397.5298844991. The cubic root of 1552165361 is about 1157.8331927235.

The spelling of 1552165361 in words is "one billion, five hundred fifty-two million, one hundred sixty-five thousand, three hundred sixty-one".