1525697245 has 16 divisors (see below), whose sum is σ = 1928903040. Its totient is φ = 1155294144.

The previous prime is 1525697219. The next prime is 1525697263. The reversal of 1525697245 is 5427965251.

It is a cyclic number.

It is not a de Polignac number, because 1525697245 - 2¹⁵ = 1525664477 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1525697195 and 1525697204.

It is a congruent number.

It is an unprimeable number.

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, 111024 + ... + 124006.

It is an arithmetic number, because the mean of its divisors is an integer number (120556440).

Almost surely, 2^1525697245 is an apocalyptic number.

It is an amenable number.

1525697245 is a deficient number, since it is larger than the sum of its proper divisors (403205795).

1525697245 is a wasteful number, since it uses less digits than its factorization.

1525697245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14244.

The product of its digits is 756000, while the sum is 46.

The square root of 1525697245 is about 39060.1746667882. The cubic root of 1525697245 is about 1151.2141543342.

The spelling of 1525697245 in words is "one billion, five hundred twenty-five million, six hundred ninety-seven thousand, two hundred forty-five".