1053888781 has 8 divisors (see below), whose sum is σ = 1149978528. Its totient is φ = 957846000.

The previous prime is 1053888779. The next prime is 1053888817. The reversal of 1053888781 is 1878883501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1053888781 - 2¹ = 1053888779 is a prime.

It is a super-2 number, since 2×1053888781² = 2221363125435331922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1053888721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48766 + ... + 66976.

It is an arithmetic number, because the mean of its divisors is an integer number (143747316).

Almost surely, 2^1053888781 is an apocalyptic number.

1053888781 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1053888781 is a deficient number, since it is larger than the sum of its proper divisors (96089747).

1053888781 is a wasteful number, since it uses less digits than its factorization.

1053888781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23483.

The product of its (nonzero) digits is 430080, while the sum is 49.

The square root of 1053888781 is about 32463.6532294195. The cubic root of 1053888781 is about 1017.6495864367.

The spelling of 1053888781 in words is "one billion, fifty-three million, eight hundred eighty-eight thousand, seven hundred eighty-one".