1026555000 has 80 divisors (see below), whose sum is σ = 3207004680. Its totient is φ = 273744000.

The previous prime is 1026554917. The next prime is 1026555001. The reversal of 1026555000 is 5556201.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1026555001) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 19219 + ... + 49218.

Almost surely, 2^1026555000 is an apocalyptic number.

1026555000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1026555000 is an abundant number, since it is smaller than the sum of its proper divisors (2180449680).

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

1026555000 is an equidigital number, since it uses as much as digits as its factorization.

1026555000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68466 (or 68447 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 1026555000 is about 32039.8970035798. The cubic root of 1026555000 is about 1008.7744505006.

The spelling of 1026555000 in words is "one billion, twenty-six million, five hundred fifty-five thousand".