125543254505 has 8 divisors (see below), whose sum is σ = 151554013632. Its totient is φ = 99833198128.

The previous prime is 125543254481. The next prime is 125543254513. The reversal of 125543254505 is 505452345521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 125543254505 - 2¹² = 125543250409 is a prime.

It is a super-2 number, since 2×125543254505² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75174767 + ... + 75176436.

It is an arithmetic number, because the mean of its divisors is an integer number (18944251704).

Almost surely, 2^125543254505 is an apocalyptic number.

It is an amenable number.

125543254505 is a deficient number, since it is larger than the sum of its proper divisors (26010759127).

125543254505 is a wasteful number, since it uses less digits than its factorization.

125543254505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150351375.

The product of its (nonzero) digits is 600000, while the sum is 41.

The spelling of 125543254505 in words is "one hundred twenty-five billion, five hundred forty-three million, two hundred fifty-four thousand, five hundred five".