125002530 has 48 divisors (see below), whose sum is σ = 344128824. Its totient is φ = 31372800.

The previous prime is 125002517. The next prime is 125002531. The reversal of 125002530 is 35200521.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 87216921 + 37785609 = 9339^2 + 6147^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (125002531) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39321 + ... + 42380.

Almost surely, 2^125002530 is an apocalyptic number.

125002530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125002530 is an abundant number, since it is smaller than the sum of its proper divisors (219126294).

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

125002530 is a wasteful number, since it uses less digits than its factorization.

125002530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81731 (or 81728 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 125002530 is about 11180.4530319661. The cubic root of 125002530 is about 500.0033733106.

The spelling of 125002530 in words is "one hundred twenty-five million, two thousand, five hundred thirty".