1055720724 has 12 divisors (see below), whose sum is σ = 2463348384. Its totient is φ = 351906904.

The previous prime is 1055720681. The next prime is 1055720737. The reversal of 1055720724 is 4270275501.

1055720724 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×1055720724² = 2229092494166168352, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43988352 + ... + 43988375.

It is an arithmetic number, because the mean of its divisors is an integer number (205279032).

Almost surely, 2^1055720724 is an apocalyptic number.

It is an amenable number.

1055720724 is an abundant number, since it is smaller than the sum of its proper divisors (1407627660).

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

1055720724 is a wasteful number, since it uses less digits than its factorization.

1055720724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87976734 (or 87976732 counting only the distinct ones).

The product of its (nonzero) digits is 19600, while the sum is 33.

The square root of 1055720724 is about 32491.8562719953. The cubic root of 1055720724 is about 1018.2388949441.

The spelling of 1055720724 in words is "one billion, fifty-five million, seven hundred twenty thousand, seven hundred twenty-four".