125245654840 has 32 divisors (see below), whose sum is σ = 281963088000. Its totient is φ = 50069752704.

The previous prime is 125245654817. The next prime is 125245654841. The reversal of 125245654840 is 48456542521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125245654841) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 819675 + ... + 960394.

It is an arithmetic number, because the mean of its divisors is an integer number (8811346500).

Almost surely, 2^125245654840 is an apocalyptic number.

125245654840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125245654840 is an abundant number, since it is smaller than the sum of its proper divisors (156717433160).

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

125245654840 is a wasteful number, since it uses less digits than its factorization.

125245654840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1781839 (or 1781835 counting only the distinct ones).

The product of its (nonzero) digits is 1536000, while the sum is 46.

The spelling of 125245654840 in words is "one hundred twenty-five billion, two hundred forty-five million, six hundred fifty-four thousand, eight hundred forty".