853055642 has 4 divisors (see below), whose sum is σ = 1279583466. Its totient is φ = 426527820.

The previous prime is 853055641. The next prime is 853055647. The reversal of 853055642 is 246550358.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 602751601 + 250304041 = 24551^2 + 15821^2 .

It is a junction number, because it is equal to n+sod(n) for n = 853055596 and 853055605.

It is not an unprimeable number, because it can be changed into a prime (853055641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213263909 + ... + 213263912.

Almost surely, 2^853055642 is an apocalyptic number.

853055642 is a deficient number, since it is larger than the sum of its proper divisors (426527824).

853055642 is a wasteful number, since it uses less digits than its factorization.

853055642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426527823.

The product of its (nonzero) digits is 144000, while the sum is 38.

The square root of 853055642 is about 29207.1162903838. The cubic root of 853055642 is about 948.4019826969.

The spelling of 853055642 in words is "eight hundred fifty-three million, fifty-five thousand, six hundred forty-two".