125560100 has 18 divisors (see below), whose sum is σ = 272465634. Its totient is φ = 50224000.

The previous prime is 125560091. The next prime is 125560109. The reversal of 125560100 is 1065521.

It is an interprime number because it is at equal distance from previous prime (125560091) and next prime (125560109).

It can be written as a sum of positive squares in 3 ways, for example, as 6270016 + 119290084 = 2504^2 + 10922^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (125560109) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 627701 + ... + 627900.

Almost surely, 2^125560100 is an apocalyptic number.

125560100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125560100 is an abundant number, since it is smaller than the sum of its proper divisors (146905534).

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

125560100 is a wasteful number, since it uses less digits than its factorization.

125560100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1255615 (or 1255608 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 125560100 is about 11205.3603244162. The cubic root of 125560100 is about 500.7456873479.

The spelling of 125560100 in words is "one hundred twenty-five million, five hundred sixty thousand, one hundred".