1552505 has 4 divisors (see below), whose sum is σ = 1863012. Its totient is φ = 1242000.

The previous prime is 1552501. The next prime is 1552513. The reversal of 1552505 is 5052551.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5052551 = 7 ⋅721793.

It can be written as a sum of positive squares in 2 ways, for example, as 322624 + 1229881 = 568^2 + 1109^2 .

It is not a de Polignac number, because 1552505 - 2² = 1552501 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1552501) 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, 155246 + ... + 155255.

It is an arithmetic number, because the mean of its divisors is an integer number (465753).

2^1552505 is an apocalyptic number.

It is an amenable number.

1552505 is a deficient number, since it is larger than the sum of its proper divisors (310507).

1552505 is an equidigital number, since it uses as much as digits as its factorization.

1552505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310506.

The product of its (nonzero) digits is 1250, while the sum is 23.

The square root of 1552505 is about 1245.9955858670. The cubic root of 1552505 is about 115.7917637469.

The spelling of 1552505 in words is "one million, five hundred fifty-two thousand, five hundred five".