1525152388 has 12 divisors (see below), whose sum is σ = 2669299920. Its totient is φ = 762495272.

The previous prime is 1525152359. The next prime is 1525152389. The reversal of 1525152388 is 8832515251.

It is a self number, because there is not a number n which added to its sum of digits gives 1525152388.

It is not an unprimeable number, because it can be changed into a prime (1525152389) 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, 46995 + ... + 72517.

It is an arithmetic number, because the mean of its divisors is an integer number (222441660).

Almost surely, 2^1525152388 is an apocalyptic number.

It is an amenable number.

1525152388 is a deficient number, since it is larger than the sum of its proper divisors (1144147532).

1525152388 is a wasteful number, since it uses less digits than its factorization.

1525152388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40466 (or 40464 counting only the distinct ones).

The product of its digits is 96000, while the sum is 40.

The square root of 1525152388 is about 39053.1994591992. The cubic root of 1525152388 is about 1151.0770974848.

The spelling of 1525152388 in words is "one billion, five hundred twenty-five million, one hundred fifty-two thousand, three hundred eighty-eight".