1052520503 has 16 divisors (see below), whose sum is σ = 1130891520. Its totient is φ = 977163264.

The previous prime is 1052520479. The next prime is 1052520509. The reversal of 1052520503 is 3050252501.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1052520503 is a prime.

It is a super-2 number, since 2×1052520503² = 2215598818470746018, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1052520509) 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 15 ways as a sum of consecutive naturals, for example, 157943 + ... + 164471.

It is an arithmetic number, because the mean of its divisors is an integer number (70680720).

Almost surely, 2^1052520503 is an apocalyptic number.

1052520503 is a deficient number, since it is larger than the sum of its proper divisors (78371017).

1052520503 is a wasteful number, since it uses less digits than its factorization.

1052520503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6758.

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

The square root of 1052520503 is about 32442.5723856787. The cubic root of 1052520503 is about 1017.2089863141.

The spelling of 1052520503 in words is "one billion, fifty-two million, five hundred twenty thousand, five hundred three".