96553981 has 2 divisors, whose sum is σ = 96553982. Its totient is φ = 96553980.

The previous prime is 96553967. The next prime is 96553997. The reversal of 96553981 is 18935569.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 85932900 + 10621081 = 9270^2 + 3259^2 .

It is a cyclic number.

It is not a de Polignac number, because 96553981 - 2⁵ = 96553949 is a prime.

It is a super-2 number, since 2×96553981² = 18645342493896722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (96553921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48276990 + 48276991.

It is an arithmetic number, because the mean of its divisors is an integer number (48276991).

Almost surely, 2^96553981 is an apocalyptic number.

It is an amenable number.

96553981 is a deficient number, since it is larger than the sum of its proper divisors (1).

96553981 is an equidigital number, since it uses as much as digits as its factorization.

96553981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 291600, while the sum is 46.

The square root of 96553981 is about 9826.1885286209. The cubic root of 96553981 is about 458.7647720497.

It can be divided in two parts, 965 and 53981, that added together give a triangular number (54946 = T₃₃₁).

The spelling of 96553981 in words is "ninety-six million, five hundred fifty-three thousand, nine hundred eighty-one".