956655551 has 2 divisors, whose sum is σ = 956655552. Its totient is φ = 956655550.

The previous prime is 956655541. The next prime is 956655563. The reversal of 956655551 is 155556659.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 956655551 - 2²⁶ = 889546687 is a prime.

It is a super-2 number, since 2×956655551² = 1830379686518227202, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 956655496 and 956655505.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (956655521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 478327775 + 478327776.

It is an arithmetic number, because the mean of its divisors is an integer number (478327776).

Almost surely, 2^956655551 is an apocalyptic number.

956655551 is a deficient number, since it is larger than the sum of its proper divisors (1).

956655551 is an equidigital number, since it uses as much as digits as its factorization.

956655551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1012500, while the sum is 47.

The square root of 956655551 is about 30929.8488680433. The cubic root of 956655551 is about 985.3379245437.

The spelling of 956655551 in words is "nine hundred fifty-six million, six hundred fifty-five thousand, five hundred fifty-one".