11552971 has 2 divisors, whose sum is σ = 11552972. Its totient is φ = 11552970.

The previous prime is 11552963. The next prime is 11552977. The reversal of 11552971 is 17925511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11552971 - 2³ = 11552963 is a prime.

It is a super-2 number, since 2×11552971² = 266942277853682, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11552977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5776485 + 5776486.

It is an arithmetic number, because the mean of its divisors is an integer number (5776486).

Almost surely, 2^11552971 is an apocalyptic number.

11552971 is a deficient number, since it is larger than the sum of its proper divisors (1).

11552971 is an equidigital number, since it uses as much as digits as its factorization.

11552971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3150, while the sum is 31.

The square root of 11552971 is about 3398.9661663512. The cubic root of 11552971 is about 226.0639062755.

It can be divided in two parts, 115529 and 71, that added together give a square (115600 = 340²).

The spelling of 11552971 in words is "eleven million, five hundred fifty-two thousand, nine hundred seventy-one".