1552550113 has 4 divisors (see below), whose sum is σ = 1574417088. Its totient is φ = 1530683140.

The previous prime is 1552550099. The next prime is 1552550123. The reversal of 1552550113 is 3110552551.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3110552551 = 307 ⋅10132093.

It is a cyclic number.

It is not a de Polignac number, because 1552550113 - 2¹⁷ = 1552419041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1552550123) 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, 10933381 + ... + 10933522.

It is an arithmetic number, because the mean of its divisors is an integer number (393604272).

Almost surely, 2^1552550113 is an apocalyptic number.

It is an amenable number.

1552550113 is a deficient number, since it is larger than the sum of its proper divisors (21866975).

1552550113 is an equidigital number, since it uses as much as digits as its factorization.

1552550113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21866974.

The product of its (nonzero) digits is 3750, while the sum is 28.

The square root of 1552550113 is about 39402.4125276613. The cubic root of 1552550113 is about 1157.9288530280.

The spelling of 1552550113 in words is "one billion, five hundred fifty-two million, five hundred fifty thousand, one hundred thirteen".