1525242000 has 80 divisors (see below), whose sum is σ = 4917399552. Its totient is φ = 406729600.

The previous prime is 1525241983. The next prime is 1525242007. The reversal of 1525242000 is 2425251.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (1525242007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121104 + ... + 133103.

Almost surely, 2^1525242000 is an apocalyptic number.

1525242000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1525242000 is an abundant number, since it is smaller than the sum of its proper divisors (3392157552).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1525242000 is a wasteful number, since it uses less digits than its factorization.

1525242000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254233 (or 254217 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 1525242000 is about 39054.3467491136. The cubic root of 1525242000 is about 1151.0996413087.

Adding to 1525242000 its reverse (2425251), we get a palindrome (1527667251).

The spelling of 1525242000 in words is "one billion, five hundred twenty-five million, two hundred forty-two thousand".