1055520404 has 12 divisors (see below), whose sum is σ = 1847406624. Its totient is φ = 527689944.

The previous prime is 1055520383. The next prime is 1055520451. The reversal of 1055520404 is 4040255501.

It is a super-2 number, since 2×1055520404² = 2228246646520646432, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31409 + ... + 55655.

It is an arithmetic number, because the mean of its divisors is an integer number (153950552).

Almost surely, 2^1055520404 is an apocalyptic number.

It is an amenable number.

1055520404 is a deficient number, since it is larger than the sum of its proper divisors (791886220).

1055520404 is a wasteful number, since it uses less digits than its factorization.

1055520404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35134 (or 35132 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 1055520404 is about 32488.7735071671. The cubic root of 1055520404 is about 1018.1744882270.

Adding to 1055520404 its reverse (4040255501), we get a palindrome (5095775905).

The spelling of 1055520404 in words is "one billion, fifty-five million, five hundred twenty thousand, four hundred four".