126502525 has 18 divisors (see below), whose sum is σ = 166642670. Its totient is φ = 95243520.

The previous prime is 126502489. The next prime is 126502543. The reversal of 126502525 is 525205621.

It can be written as a sum of positive squares in 9 ways, for example, as 39677401 + 86825124 = 6299^2 + 9318^2 .

It is a de Polignac number, because none of the positive numbers 2^k-126502525 is a prime.

It is a super-3 number, since 3×126502525³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 126502493 and 126502502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1530 + ... + 15979.

Almost surely, 2^126502525 is an apocalyptic number.

It is an amenable number.

126502525 is a deficient number, since it is larger than the sum of its proper divisors (40140145).

126502525 is a wasteful number, since it uses less digits than its factorization.

126502525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17553 (or 17531 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 126502525 is about 11247.3341285835. The cubic root of 126502525 is about 501.9953928880.

The spelling of 126502525 in words is "one hundred twenty-six million, five hundred two thousand, five hundred twenty-five".