120525503 has 4 divisors (see below), whose sum is σ = 137743440. Its totient is φ = 103307568.

The previous prime is 120525499. The next prime is 120525511. The reversal of 120525503 is 305525021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 305525021 = 37 ⋅8257433.

It is not a de Polignac number, because 120525503 - 2² = 120525499 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120525523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8608958 + ... + 8608971.

It is an arithmetic number, because the mean of its divisors is an integer number (34435860).

Almost surely, 2^120525503 is an apocalyptic number.

120525503 is a deficient number, since it is larger than the sum of its proper divisors (17217937).

120525503 is an equidigital number, since it uses as much as digits as its factorization.

120525503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17217936.

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 120525503 is about 10978.4107684127. The cubic root of 120525503 is about 493.9613674324.

The spelling of 120525503 in words is "one hundred twenty million, five hundred twenty-five thousand, five hundred three".