1055921551 has 2 divisors, whose sum is σ = 1055921552. Its totient is φ = 1055921550.

The previous prime is 1055921539. The next prime is 1055921563. The reversal of 1055921551 is 1551295501.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (1055921539) and next prime (1055921563).

It is a cyclic number.

It is not a de Polignac number, because 1055921551 - 2²¹ = 1053824399 is a prime.

It is a super-2 number, since 2×1055921551² = 2229940643732491202, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1055921591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 527960775 + 527960776.

It is an arithmetic number, because the mean of its divisors is an integer number (527960776).

Almost surely, 2^1055921551 is an apocalyptic number.

1055921551 is a deficient number, since it is larger than the sum of its proper divisors (1).

1055921551 is an equidigital number, since it uses as much as digits as its factorization.

1055921551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11250, while the sum is 34.

The square root of 1055921551 is about 32494.9465455784. The cubic root of 1055921551 is about 1018.3034564936.

The spelling of 1055921551 in words is "one billion, fifty-five million, nine hundred twenty-one thousand, five hundred fifty-one".