1055454521 has 16 divisors (see below), whose sum is σ = 1212520320. Its totient is φ = 909342720.

The previous prime is 1055454511. The next prime is 1055454523. The reversal of 1055454521 is 1254545501.

It is a de Polignac number, because none of the positive numbers 2^k-1055454521 is a prime.

It is a super-2 number, since 2×1055454521² = 2227968491798678882, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1055454523) 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, 8441 + ... + 46713.

It is an arithmetic number, because the mean of its divisors is an integer number (75782520).

Almost surely, 2^1055454521 is an apocalyptic number.

1055454521 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1055454521 is a deficient number, since it is larger than the sum of its proper divisors (157065799).

1055454521 is a wasteful number, since it uses less digits than its factorization.

1055454521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38416.

The product of its (nonzero) digits is 20000, while the sum is 32.

The square root of 1055454521 is about 32487.7595564853. The cubic root of 1055454521 is about 1018.1533037998.

The spelling of 1055454521 in words is "one billion, fifty-five million, four hundred fifty-four thousand, five hundred twenty-one".