1552261 has 4 divisors (see below), whose sum is σ = 1594252. Its totient is φ = 1510272.

The previous prime is 1552241. The next prime is 1552277. The reversal of 1552261 is 1622551.

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 1012036 + 540225 = 1006^2 + 735^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1552261 is a prime.

It is a Duffinian number.

1552261 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1552241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20940 + ... + 21013.

It is an arithmetic number, because the mean of its divisors is an integer number (398563).

2^1552261 is an apocalyptic number.

It is an amenable number.

1552261 is a deficient number, since it is larger than the sum of its proper divisors (41991).

1552261 is an equidigital number, since it uses as much as digits as its factorization.

1552261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41990.

The product of its digits is 600, while the sum is 22.

The square root of 1552261 is about 1245.8976683500. The cubic root of 1552261 is about 115.7856972779.

The spelling of 1552261 in words is "one million, five hundred fifty-two thousand, two hundred sixty-one".