1552155405 has 8 divisors (see below), whose sum is σ = 2483448672. Its totient is φ = 827816208.

The previous prime is 1552155389. The next prime is 1552155443. The reversal of 1552155405 is 5045512551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1552155405 - 2⁴ = 1552155389 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51738499 + ... + 51738528.

It is an arithmetic number, because the mean of its divisors is an integer number (310431084).

Almost surely, 2^1552155405 is an apocalyptic number.

1552155405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1552155405 is a deficient number, since it is larger than the sum of its proper divisors (931293267).

1552155405 is a wasteful number, since it uses less digits than its factorization.

1552155405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103477035.

The product of its (nonzero) digits is 25000, while the sum is 33.

The square root of 1552155405 is about 39397.4035311973. The cubic root of 1552155405 is about 1157.8307171685.

Adding to 1552155405 its reverse (5045512551), we get a palindrome (6597667956).

The spelling of 1552155405 in words is "one billion, five hundred fifty-two million, one hundred fifty-five thousand, four hundred five".