1055220972 has 48 divisors (see below), whose sum is σ = 2655125760. Its totient is φ = 324249408.

The previous prime is 1055220967. The next prime is 1055220983. The reversal of 1055220972 is 2790225501.

It is a happy number.

It is a super-2 number, since 2×1055220972² = 2226982599497249568, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124279 + ... + 132497.

It is an arithmetic number, because the mean of its divisors is an integer number (55315120).

Almost surely, 2^1055220972 is an apocalyptic number.

1055220972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1055220972 is an abundant number, since it is smaller than the sum of its proper divisors (1599904788).

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

1055220972 is a wasteful number, since it uses less digits than its factorization.

1055220972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9062 (or 9060 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 33.

The square root of 1055220972 is about 32484.1649423223. The cubic root of 1055220972 is about 1018.0781999078.

The spelling of 1055220972 in words is "one billion, fifty-five million, two hundred twenty thousand, nine hundred seventy-two".