125400054440 has 32 divisors (see below), whose sum is σ = 294417521280. Its totient is φ = 47979150912.

The previous prime is 125400054427. The next prime is 125400054443. The reversal of 125400054440 is 44450004521.

It is not an unprimeable number, because it can be changed into a prime (125400054443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68151284 + ... + 68153123.

It is an arithmetic number, because the mean of its divisors is an integer number (9200547540).

Almost surely, 2^125400054440 is an apocalyptic number.

125400054440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125400054440 is an abundant number, since it is smaller than the sum of its proper divisors (169017466840).

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

125400054440 is a wasteful number, since it uses less digits than its factorization.

125400054440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136304441 (or 136304437 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 29.

Adding to 125400054440 its reverse (44450004521), we get a palindrome (169850058961).

The spelling of 125400054440 in words is "one hundred twenty-five billion, four hundred million, fifty-four thousand, four hundred forty".