1055505401 has 8 divisors (see below), whose sum is σ = 1147799880. Its totient is φ = 966567168.

The previous prime is 1055505389. The next prime is 1055505413. The reversal of 1055505401 is 1045055501.

It is an interprime number because it is at equal distance from previous prime (1055505389) and next prime (1055505413).

It can be written as a sum of positive squares in 4 ways, for example, as 259983376 + 795522025 = 16124^2 + 28205^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1055505401 - 2¹⁰ = 1055504377 is a prime.

It is a super-2 number, since 2×1055505401² = 2228183303080341602, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1055505601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 838406 + ... + 839663.

It is an arithmetic number, because the mean of its divisors is an integer number (143474985).

Almost surely, 2^1055505401 is an apocalyptic number.

It is an amenable number.

1055505401 is a deficient number, since it is larger than the sum of its proper divisors (92294479).

1055505401 is a wasteful number, since it uses less digits than its factorization.

1055505401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1678123.

The product of its (nonzero) digits is 2500, while the sum is 26.

The square root of 1055505401 is about 32488.5426112037. The cubic root of 1055505401 is about 1018.1696641472.

The spelling of 1055505401 in words is "one billion, fifty-five million, five hundred five thousand, four hundred one".