1055533078057 has 4 divisors (see below), whose sum is σ = 1055550151936. Its totient is φ = 1055516004180.

The previous prime is 1055533078001. The next prime is 1055533078079. The reversal of 1055533078057 is 7508703355501.

1055533078057 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1055533078057 is a prime.

It is a super-2 number, since 2×1055533078057² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1055533078057.

It is not an unprimeable number, because it can be changed into a prime (1055533078357) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8443869 + ... + 8567962.

It is an arithmetic number, because the mean of its divisors is an integer number (263887537984).

Almost surely, 2^{1055533078057} is an apocalyptic number.

It is an amenable number.

1055533078057 is a deficient number, since it is larger than the sum of its proper divisors (17073879).

1055533078057 is an equidigital number, since it uses as much as digits as its factorization.

1055533078057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17073878.

The product of its (nonzero) digits is 2205000, while the sum is 49.

The spelling of 1055533078057 in words is "one trillion, fifty-five billion, five hundred thirty-three million, seventy-eight thousand, fifty-seven".