1055403215402 has 4 divisors (see below), whose sum is σ = 1583104823106. Its totient is φ = 527701607700.

The previous prime is 1055403215359. The next prime is 1055403215497. The reversal of 1055403215402 is 2045123045501.

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., 1052776550401 + 2626665001 = 1026049^2 + 51251^2 .

It is a super-2 number, since 2×1055403215402² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 263850803849 + ... + 263850803852.

Almost surely, 2^{1055403215402} is an apocalyptic number.

1055403215402 is a deficient number, since it is larger than the sum of its proper divisors (527701607704).

1055403215402 is an equidigital number, since it uses as much as digits as its factorization.

1055403215402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527701607703.

The product of its (nonzero) digits is 24000, while the sum is 32.

The spelling of 1055403215402 in words is "one trillion, fifty-five billion, four hundred three million, two hundred fifteen thousand, four hundred two".