1552422961 has 2 divisors, whose sum is σ = 1552422962. Its totient is φ = 1552422960.

The previous prime is 1552422943. The next prime is 1552423021. The reversal of 1552422961 is 1692242551.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1375000561 + 177422400 = 37081^2 + 13320^2 .

It is a cyclic number.

It is not a de Polignac number, because 1552422961 - 2¹¹ = 1552420913 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1552422961.

It is not a weakly prime, because it can be changed into another prime (1552422931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 776211480 + 776211481.

It is an arithmetic number, because the mean of its divisors is an integer number (776211481).

Almost surely, 2^1552422961 is an apocalyptic number.

It is an amenable number.

1552422961 is a deficient number, since it is larger than the sum of its proper divisors (1).

1552422961 is an equidigital number, since it uses as much as digits as its factorization.

1552422961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43200, while the sum is 37.

The square root of 1552422961 is about 39400.7989893606. The cubic root of 1552422961 is about 1157.8972411682.

It can be divided in two parts, 155242 and 2961, that added together give a triangular number (158203 = T₅₆₂).

The spelling of 1552422961 in words is "one billion, five hundred fifty-two million, four hundred twenty-two thousand, nine hundred sixty-one".