1055477305787 has 4 divisors (see below), whose sum is σ = 1055479749456. Its totient is φ = 1055474862120.

The previous prime is 1055477305777. The next prime is 1055477305811. The reversal of 1055477305787 is 7875037745501.

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

It is a cyclic number.

It is not a de Polignac number, because 1055477305787 - 2⁶ = 1055477305723 is a prime.

It is a super-2 number, since 2×1055477305787² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1055477305777) 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, 381128 + ... + 1502069.

It is an arithmetic number, because the mean of its divisors is an integer number (263869937364).

Almost surely, 2^{1055477305787} is an apocalyptic number.

1055477305787 is a deficient number, since it is larger than the sum of its proper divisors (2443669).

1055477305787 is an equidigital number, since it uses as much as digits as its factorization.

1055477305787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2443668.

The product of its (nonzero) digits is 28812000, while the sum is 59.

The spelling of 1055477305787 in words is "one trillion, fifty-five billion, four hundred seventy-seven million, three hundred five thousand, seven hundred eighty-seven".