1055533401 has 24 divisors (see below), whose sum is σ = 1646736000. Its totient is φ = 647662176.

The previous prime is 1055533393. The next prime is 1055533439. The reversal of 1055533401 is 1043355501.

1055533401 is a `hidden beast` number, since 105 + 553 + 3 + 4 + 0 + 1 = 666.

It is not a de Polignac number, because 1055533401 - 2³ = 1055533393 is a prime.

It is a super-2 number, since 2×1055533401² = 2228301521253253602, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1055533301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27600 + ... + 53598.

It is an arithmetic number, because the mean of its divisors is an integer number (68614000).

Almost surely, 2^1055533401 is an apocalyptic number.

It is an amenable number.

1055533401 is a deficient number, since it is larger than the sum of its proper divisors (591202599).

1055533401 is a wasteful number, since it uses less digits than its factorization.

1055533401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26365 (or 26362 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 1055533401 is about 32488.9735294915. The cubic root of 1055533401 is about 1018.1786672587.

Adding to 1055533401 its reverse (1043355501), we get a palindrome (2098888902).

It can be divided in two parts, 10555 and 33401, that added together give a triangular number (43956 = T₂₉₆).

The spelling of 1055533401 in words is "one billion, fifty-five million, five hundred thirty-three thousand, four hundred one".