1552361117 has 4 divisors (see below), whose sum is σ = 1566098940. Its totient is φ = 1538623296.

The previous prime is 1552361093. The next prime is 1552361143. The reversal of 1552361117 is 7111632551.

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

It can be written as a sum of positive squares in 2 ways, for example, as 161518681 + 1390842436 = 12709^2 + 37294^2 .

It is a cyclic number.

It is not a de Polignac number, because 1552361117 - 2⁸ = 1552360861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1552361197) 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, 6868742 + ... + 6868967.

It is an arithmetic number, because the mean of its divisors is an integer number (391524735).

Almost surely, 2^1552361117 is an apocalyptic number.

It is an amenable number.

1552361117 is a deficient number, since it is larger than the sum of its proper divisors (13737823).

1552361117 is a wasteful number, since it uses less digits than its factorization.

1552361117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13737822.

The product of its digits is 6300, while the sum is 32.

The square root of 1552361117 is about 39400.0141751244. The cubic root of 1552361117 is about 1157.8818652151.

Adding to 1552361117 its reverse (7111632551), we get a palindrome (8663993668).

The spelling of 1552361117 in words is "one billion, five hundred fifty-two million, three hundred sixty-one thousand, one hundred seventeen".