1056051961 has 2 divisors, whose sum is σ = 1056051962. Its totient is φ = 1056051960.

The previous prime is 1056051959. The next prime is 1056051973. The reversal of 1056051961 is 1691506501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1045293561 + 10758400 = 32331^2 + 3280^2 .

It is a cyclic number.

It is not a de Polignac number, because 1056051961 - 2¹ = 1056051959 is a prime.

It is a super-2 number, since 2×1056051961² = 2230491488663891042, which contains 22 as substring.

Together with 1056051959, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1056061961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 528025980 + 528025981.

It is an arithmetic number, because the mean of its divisors is an integer number (528025981).

Almost surely, 2^1056051961 is an apocalyptic number.

It is an amenable number.

1056051961 is a deficient number, since it is larger than the sum of its proper divisors (1).

1056051961 is an equidigital number, since it uses as much as digits as its factorization.

1056051961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8100, while the sum is 34.

The square root of 1056051961 is about 32496.9531033295. The cubic root of 1056051961 is about 1018.3453761126.

The spelling of 1056051961 in words is "one billion, fifty-six million, fifty-one thousand, nine hundred sixty-one".