1552021453273 has 2 divisors, whose sum is σ = 1552021453274. Its totient is φ = 1552021453272.

The previous prime is 1552021453259. The next prime is 1552021453313. The reversal of 1552021453273 is 3723541202551.

It is an a-pointer prime, because the next prime (1552021453313) can be obtained adding 1552021453273 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1163004794329 + 389016658944 = 1078427^2 + 623712^2 .

It is a cyclic number.

It is not a de Polignac number, because 1552021453273 - 2¹³ = 1552021445081 is a prime.

It is not a weakly prime, because it can be changed into another prime (1552021453253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 776010726636 + 776010726637.

It is an arithmetic number, because the mean of its divisors is an integer number (776010726637).

Almost surely, 2^{1552021453273} is an apocalyptic number.

It is an amenable number.

1552021453273 is a deficient number, since it is larger than the sum of its proper divisors (1).

1552021453273 is an equidigital number, since it uses as much as digits as its factorization.

1552021453273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252000, while the sum is 40.

The spelling of 1552021453273 in words is "one trillion, five hundred fifty-two billion, twenty-one million, four hundred fifty-three thousand, two hundred seventy-three".