1525012612 has 12 divisors (see below), whose sum is σ = 2674210896. Its totient is φ = 760952360.

The previous prime is 1525012583. The next prime is 1525012613. The reversal of 1525012612 is 2162105251.

It is not an unprimeable number, because it can be changed into a prime (1525012613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 386278 + ... + 390205.

It is an arithmetic number, because the mean of its divisors is an integer number (222850908).

Almost surely, 2^1525012612 is an apocalyptic number.

It is an amenable number.

1525012612 is a deficient number, since it is larger than the sum of its proper divisors (1149198284).

1525012612 is a wasteful number, since it uses less digits than its factorization.

1525012612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 776978 (or 776976 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 1525012612 is about 39051.4098593124. The cubic root of 1525012612 is about 1151.0419320659.

Adding to 1525012612 its reverse (2162105251), we get a palindrome (3687117863).

The spelling of 1525012612 in words is "one billion, five hundred twenty-five million, twelve thousand, six hundred twelve".