1525012535 has 16 divisors (see below), whose sum is σ = 1902138336. Its totient is φ = 1172723328.

The previous prime is 1525012529. The next prime is 1525012547. The reversal of 1525012535 is 5352105251.

It is a cyclic number.

It is not a de Polignac number, because 1525012535 - 2¹⁶ = 1524946999 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1525012498 and 1525012507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34304 + ... + 65013.

It is an arithmetic number, because the mean of its divisors is an integer number (118883646).

Almost surely, 2^1525012535 is an apocalyptic number.

1525012535 is a deficient number, since it is larger than the sum of its proper divisors (377125801).

1525012535 is an equidigital number, since it uses as much as digits as its factorization.

1525012535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99442.

The product of its (nonzero) digits is 7500, while the sum is 29.

The square root of 1525012535 is about 39051.4088734325. The cubic root of 1525012535 is about 1151.0419126933.

Adding to 1525012535 its reverse (5352105251), we get a palindrome (6877117786).

The spelling of 1525012535 in words is "one billion, five hundred twenty-five million, twelve thousand, five hundred thirty-five".