1525612242 has 32 divisors (see below), whose sum is σ = 3804125184. Its totient is φ = 396262800.

The previous prime is 1525612229. The next prime is 1525612243. The reversal of 1525612242 is 2422165251.

It is not an unprimeable number, because it can be changed into a prime (1525612243) 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, 1650634 + ... + 1651557.

It is an arithmetic number, because the mean of its divisors is an integer number (118878912).

Almost surely, 2^1525612242 is an apocalyptic number.

1525612242 is an abundant number, since it is smaller than the sum of its proper divisors (2278512942).

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

1525612242 is a wasteful number, since it uses less digits than its factorization.

1525612242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3302214.

The product of its digits is 9600, while the sum is 30.

The square root of 1525612242 is about 39059.0865484589. The cubic root of 1525612242 is about 1151.1927742790.

Adding to 1525612242 its reverse (2422165251), we get a palindrome (3947777493).

The spelling of 1525612242 in words is "one billion, five hundred twenty-five million, six hundred twelve thousand, two hundred forty-two".