1055544420 has 96 divisors (see below), whose sum is σ = 3486744576. Its totient is φ = 233481600.

The previous prime is 1055544419. The next prime is 1055544431. The reversal of 1055544420 is 244455501.

It is a super-2 number, since 2×1055544420² = 2228348045186272800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27516 + ... + 53555.

It is an arithmetic number, because the mean of its divisors is an integer number (36320256).

Almost surely, 2^1055544420 is an apocalyptic number.

1055544420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1055544420 is an abundant number, since it is smaller than the sum of its proper divisors (2431200156).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1055544420 is a wasteful number, since it uses less digits than its factorization.

1055544420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81121 (or 81119 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 30.

The square root of 1055544420 is about 32489.1431096605. The cubic root of 1055544420 is about 1018.1822102609.

Adding to 1055544420 its reverse (244455501), we get a palindrome (1299999921).

The spelling of 1055544420 in words is "one billion, fifty-five million, five hundred forty-four thousand, four hundred twenty".