1055721276 has 36 divisors (see below), whose sum is σ = 2767469432. Its totient is φ = 351906768.

The previous prime is 1055721241. The next prime is 1055721281. The reversal of 1055721276 is 6721275501.

1055721276 is a `hidden beast` number, since 1 + 0 + 5 + 572 + 12 + 76 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×1055721276² = 2229094825198136352, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1055721276.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 542095 + ... + 544038.

Almost surely, 2^1055721276 is an apocalyptic number.

It is an amenable number.

1055721276 is an abundant number, since it is smaller than the sum of its proper divisors (1711748156).

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

1055721276 is a wasteful number, since it uses less digits than its factorization.

1055721276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1086152 (or 1086138 counting only the distinct ones).

The product of its (nonzero) digits is 29400, while the sum is 36.

The square root of 1055721276 is about 32491.8647664304. The cubic root of 1055721276 is about 1018.2390724114.

Adding to 1055721276 its reverse (6721275501), we get a palindrome (7776996777).

The spelling of 1055721276 in words is "one billion, fifty-five million, seven hundred twenty-one thousand, two hundred seventy-six".