125205451500 has 192 divisors, whose sum is σ = 375025158144. Its totient is φ = 32440000000.

The previous prime is 125205451453. The next prime is 125205451513. The reversal of 125205451500 is 5154502521.

125205451500 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15432445 + ... + 15440555.

It is an arithmetic number, because the mean of its divisors is an integer number (1953256032).

Almost surely, 2^125205451500 is an apocalyptic number.

125205451500 is a gapful number since it is divisible by the number (10) 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 125205451500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187512579072).

125205451500 is an abundant number, since it is smaller than the sum of its proper divisors (249819706644).

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

125205451500 is a wasteful number, since it uses less digits than its factorization.

125205451500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8425 (or 8413 counting only the distinct ones).

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

The spelling of 125205451500 in words is "one hundred twenty-five billion, two hundred five million, four hundred fifty-one thousand, five hundred".