1525525412 has 24 divisors (see below), whose sum is σ = 2736390720. Its totient is φ = 743925600.

The previous prime is 1525525403. The next prime is 1525525459. The reversal of 1525525412 is 2145255251.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1112 + ... + 55247.

It is an arithmetic number, because the mean of its divisors is an integer number (114016280).

Almost surely, 2^1525525412 is an apocalyptic number.

It is an amenable number.

1525525412 is a deficient number, since it is larger than the sum of its proper divisors (1210865308).

1525525412 is a wasteful number, since it uses less digits than its factorization.

1525525412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56531 (or 56529 counting only the distinct ones).

The product of its digits is 20000, while the sum is 32.

The square root of 1525525412 is about 39057.9750115133. The cubic root of 1525525412 is about 1151.1709338746.

The spelling of 1525525412 in words is "one billion, five hundred twenty-five million, five hundred twenty-five thousand, four hundred twelve".