125002000 has 40 divisors (see below), whose sum is σ = 302259672. Its totient is φ = 50000000.

The previous prime is 125001997. The next prime is 125002027. The reversal of 125002000 is 200521.

It can be written as a sum of positive squares in 4 ways, for example, as 3825936 + 121176064 = 1956^2 + 11008^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent 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, 29251 + ... + 33250.

Almost surely, 2^125002000 is an apocalyptic number.

125002000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125002000 is an abundant number, since it is smaller than the sum of its proper divisors (177257672).

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

125002000 is an equidigital number, since it uses as much as digits as its factorization.

125002000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62524 (or 62508 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 10.

The square root of 125002000 is about 11180.4293298603. The cubic root of 125002000 is about 500.0026666524.

Adding to 125002000 its reverse (200521), we get a palindrome (125202521).

It can be divided in two parts, 12500 and 2000, that multiplied together give a square (25000000 = 5000²).

The spelling of 125002000 in words is "one hundred twenty-five million, two thousand".