276550000 has 60 divisors (see below), whose sum is σ = 669847752. Its totient is φ = 110600000.

The previous prime is 276549991. The next prime is 276550037. The reversal of 276550000 is 55672.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (25).

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, 47235 + ... + 52765.

Almost surely, 2^276550000 is an apocalyptic number.

276550000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 276550000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (334923876).

276550000 is an abundant number, since it is smaller than the sum of its proper divisors (393297752).

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

276550000 is an frugal number, since it uses more digits than its factorization.

276550000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5564 (or 5538 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 276550000 is about 16629.7925423019. The cubic root of 276550000 is about 651.5152028670.

The spelling of 276550000 in words is "two hundred seventy-six million, five hundred fifty thousand".