1253276550 has 240 divisors, whose sum is σ = 3743197920. Its totient is φ = 309795840.

The previous prime is 1253276503. The next prime is 1253276599. The reversal of 1253276550 is 556723521.

1253276550 is a `hidden beast` number, since 1 + 2 + 5 + 32 + 76 + 550 = 666.

It is a super-2 number, since 2×1253276550² = 3141404221559805000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 7504567 + ... + 7504733.

It is an arithmetic number, because the mean of its divisors is an integer number (15596658).

Almost surely, 2^1253276550 is an apocalyptic number.

1253276550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1253276550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1871598960).

1253276550 is an abundant number, since it is smaller than the sum of its proper divisors (2489921370).

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

1253276550 is a wasteful number, since it uses less digits than its factorization.

1253276550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317 (or 303 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 36.

The square root of 1253276550 is about 35401.6461481666. The cubic root of 1253276550 is about 1078.1577388924.

The spelling of 1253276550 in words is "one billion, two hundred fifty-three million, two hundred seventy-six thousand, five hundred fifty".