1055360621 has 16 divisors (see below), whose sum is σ = 1246522368. Its totient is φ = 874368000.

The previous prime is 1055360597. The next prime is 1055360633. The reversal of 1055360621 is 1260635501.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1055360621 is a prime.

It is a super-2 number, since 2×1055360621² = 2227572080715011282, which contains 22 as substring.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1055360651) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 217421 + ... + 222221.

It is an arithmetic number, because the mean of its divisors is an integer number (77907648).

Almost surely, 2^1055360621 is an apocalyptic number.

It is an amenable number.

1055360621 is a deficient number, since it is larger than the sum of its proper divisors (191161747).

1055360621 is a wasteful number, since it uses less digits than its factorization.

1055360621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5852.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 1055360621 is about 32486.3143646675. The cubic root of 1055360621 is about 1018.1231090895.

The spelling of 1055360621 in words is "one billion, fifty-five million, three hundred sixty thousand, six hundred twenty-one".