1125852389550 has 768 divisors, whose sum is σ = 3849156495360. Its totient is φ = 236141568000.

The previous prime is 1125852389549. The next prime is 1125852389551. The reversal of 1125852389550 is 559832585211.

1125852389550 is a `hidden beast` number, since 1 + 1 + 2 + 5 + 8 + 5 + 2 + 3 + 89 + 550 = 666.

It is an interprime number because it is at equal distance from previous prime (1125852389549) and next prime (1125852389551).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125852389551) by changing a digit.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 1283753712 + ... + 1283754588.

It is an arithmetic number, because the mean of its divisors is an integer number (5011922520).

Almost surely, 2^{1125852389550} is an apocalyptic number.

1125852389550 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 1125852389550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1924578247680).

1125852389550 is an abundant number, since it is smaller than the sum of its proper divisors (2723304105810).

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

1125852389550 is a wasteful number, since it uses less digits than its factorization.

1125852389550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1114 (or 1103 counting only the distinct ones).

The product of its (nonzero) digits is 4320000, while the sum is 54.

The spelling of 1125852389550 in words is "one trillion, one hundred twenty-five billion, eight hundred fifty-two million, three hundred eighty-nine thousand, five hundred fifty".