1055420663 has 8 divisors (see below), whose sum is σ = 1155050256. Its totient is φ = 956404800.

The previous prime is 1055420657. The next prime is 1055420669. The reversal of 1055420663 is 3660245501.

It is an interprime number because it is at equal distance from previous prime (1055420657) and next prime (1055420669).

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 1055420663 - 2¹² = 1055416567 is a prime.

It is a super-2 number, since 2×1055420663² = 2227825551774719138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1055420669) 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 7 ways as a sum of consecutive naturals, for example, 149828 + ... + 156713.

It is an arithmetic number, because the mean of its divisors is an integer number (144381282).

Almost surely, 2^1055420663 is an apocalyptic number.

1055420663 is a deficient number, since it is larger than the sum of its proper divisors (99629593).

1055420663 is a wasteful number, since it uses less digits than its factorization.

1055420663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306865.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 1055420663 is about 32487.2384637414. The cubic root of 1055420663 is about 1018.1424165462.

The spelling of 1055420663 in words is "one billion, fifty-five million, four hundred twenty thousand, six hundred sixty-three".