955278381 has 16 divisors (see below), whose sum is σ = 1296414720. Its totient is φ = 625516080.

The previous prime is 955278367. The next prime is 955278391. The reversal of 955278381 is 183872559.

It is a de Polignac number, because none of the positive numbers 2^k-955278381 is a prime.

It is a super-2 number, since 2×955278381² = 1825113570411962322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 955278381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (955278391) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 367396 + ... + 369986.

It is an arithmetic number, because the mean of its divisors is an integer number (81025920).

Almost surely, 2^955278381 is an apocalyptic number.

It is an amenable number.

955278381 is a deficient number, since it is larger than the sum of its proper divisors (341136339).

955278381 is a wasteful number, since it uses less digits than its factorization.

955278381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4736.

The product of its digits is 604800, while the sum is 48.

The square root of 955278381 is about 30907.5780513453. The cubic root of 955278381 is about 984.8648774081.

The spelling of 955278381 in words is "nine hundred fifty-five million, two hundred seventy-eight thousand, three hundred eighty-one".