1552013321251 has 2 divisors, whose sum is σ = 1552013321252. Its totient is φ = 1552013321250.

The previous prime is 1552013321239. The next prime is 1552013321303. The reversal of 1552013321251 is 1521233102551.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1552013321251 - 2¹⁷ = 1552013190179 is a prime.

It is not a weakly prime, because it can be changed into another prime (1552013321231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 776006660625 + 776006660626.

It is an arithmetic number, because the mean of its divisors is an integer number (776006660626).

Almost surely, 2^{1552013321251} is an apocalyptic number.

1552013321251 is a deficient number, since it is larger than the sum of its proper divisors (1).

1552013321251 is an equidigital number, since it uses as much as digits as its factorization.

1552013321251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9000, while the sum is 31.

The spelling of 1552013321251 in words is "one trillion, five hundred fifty-two billion, thirteen million, three hundred twenty-one thousand, two hundred fifty-one".