125543620 has 24 divisors (see below), whose sum is σ = 267357888. Its totient is φ = 49509600.

The previous prime is 125543609. The next prime is 125543629. The reversal of 125543620 is 26345521.

It is a super-2 number, since 2×125543620² = 31522401045408800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (125543629) 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, 42786 + ... + 45625.

It is an arithmetic number, because the mean of its divisors is an integer number (11139912).

Almost surely, 2^125543620 is an apocalyptic number.

125543620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125543620 is an abundant number, since it is smaller than the sum of its proper divisors (141814268).

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

125543620 is a wasteful number, since it uses less digits than its factorization.

125543620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88491 (or 88489 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 125543620 is about 11204.6249379442. The cubic root of 125543620 is about 500.7237784506.

The spelling of 125543620 in words is "one hundred twenty-five million, five hundred forty-three thousand, six hundred twenty".