1254125550 has 48 divisors (see below), whose sum is σ = 3131161200. Its totient is φ = 332183040.

The previous prime is 1254125549. The next prime is 1254125627. The reversal of 1254125550 is 555214521.

It is a Harshad number since it is a multiple of its sum of digits (30).

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 23 ways as a sum of consecutive naturals, for example, 5707 + ... + 50406.

It is an arithmetic number, because the mean of its divisors is an integer number (65232525).

Almost surely, 2^1254125550 is an apocalyptic number.

1254125550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1254125550 is an abundant number, since it is smaller than the sum of its proper divisors (1877035650).

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

1254125550 is a wasteful number, since it uses less digits than its factorization.

1254125550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56277 (or 56272 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 30.

The square root of 1254125550 is about 35413.6350859383. The cubic root of 1254125550 is about 1078.4011406921.

The spelling of 1254125550 in words is "one billion, two hundred fifty-four million, one hundred twenty-five thousand, five hundred fifty".