1552252591 has 2 divisors, whose sum is σ = 1552252592. Its totient is φ = 1552252590.

The previous prime is 1552252529. The next prime is 1552252619. The reversal of 1552252591 is 1952522551.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1552252591 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1552252591.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1552252511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 776126295 + 776126296.

It is an arithmetic number, because the mean of its divisors is an integer number (776126296).

Almost surely, 2^1552252591 is an apocalyptic number.

1552252591 is a deficient number, since it is larger than the sum of its proper divisors (1).

1552252591 is an equidigital number, since it uses as much as digits as its factorization.

1552252591 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45000, while the sum is 37.

The square root of 1552252591 is about 39398.6369180458. The cubic root of 1552252591 is about 1157.8548819713.

The spelling of 1552252591 in words is "one billion, five hundred fifty-two million, two hundred fifty-two thousand, five hundred ninety-one".