1025267525 has 24 divisors (see below), whose sum is σ = 1307499648. Its totient is φ = 797040000.

The previous prime is 1025267489. The next prime is 1025267597. The reversal of 1025267525 is 5257625201.

It is a de Polignac number, because none of the positive numbers 2^k-1025267525 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 275930 + ... + 279620.

It is an arithmetic number, because the mean of its divisors is an integer number (54479152).

Almost surely, 2^1025267525 is an apocalyptic number.

It is an amenable number.

1025267525 is a deficient number, since it is larger than the sum of its proper divisors (282232123).

1025267525 is a wasteful number, since it uses less digits than its factorization.

1025267525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4013 (or 4008 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 35.

The square root of 1025267525 is about 32019.7989531477. The cubic root of 1025267525 is about 1008.3525490195.

It can be divided in two parts, 10252 and 67525, that added together give a palindrome (77777).

The spelling of 1025267525 in words is "one billion, twenty-five million, two hundred sixty-seven thousand, five hundred twenty-five".