380553881 has 2 divisors, whose sum is σ = 380553882. Its totient is φ = 380553880.

The previous prime is 380553853. The next prime is 380553889. The reversal of 380553881 is 188355083.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 297907600 + 82646281 = 17260^2 + 9091^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-380553881 is a prime.

It is a super-2 number, since 2×380553881² = 289642512688324322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (380553889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190276940 + 190276941.

It is an arithmetic number, because the mean of its divisors is an integer number (190276941).

Almost surely, 2^380553881 is an apocalyptic number.

It is an amenable number.

380553881 is a deficient number, since it is larger than the sum of its proper divisors (1).

380553881 is an equidigital number, since it uses as much as digits as its factorization.

380553881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 115200, while the sum is 41.

The square root of 380553881 is about 19507.7902644046. The cubic root of 380553881 is about 724.6673898804.

The spelling of 380553881 in words is "three hundred eighty million, five hundred fifty-three thousand, eight hundred eighty-one".