1551883 has 2 divisors, whose sum is σ = 1551884. Its totient is φ = 1551882.

The previous prime is 1551871. The next prime is 1551887. The reversal of 1551883 is 3881551.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1551883 - 2⁹ = 1551371 is a prime.

It is not a weakly prime, because it can be changed into another prime (1551887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 775941 + 775942.

It is an arithmetic number, because the mean of its divisors is an integer number (775942).

2^1551883 is an apocalyptic number.

1551883 is a deficient number, since it is larger than the sum of its proper divisors (1).

1551883 is an equidigital number, since it uses as much as digits as its factorization.

1551883 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4800, while the sum is 31.

The square root of 1551883 is about 1245.7459612618. The cubic root of 1551883 is about 115.7762979679.

It can be divided in two parts, 155188 and 3, that multiplied together give a palindrome (465564).

The spelling of 1551883 in words is "one million, five hundred fifty-one thousand, eight hundred eighty-three".