15042425 has 6 divisors (see below), whose sum is σ = 18652638. Its totient is φ = 12033920.

The previous prime is 15042403. The next prime is 15042427. The reversal of 15042425 is 52424051.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 150544 + 14891881 = 388^2 + 3859^2 .

It is not a de Polignac number, because 15042425 - 2⁶ = 15042361 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 15042425.

It is not an unprimeable number, because it can be changed into a prime (15042427) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 300824 + ... + 300873.

It is an arithmetic number, because the mean of its divisors is an integer number (3108773).

Almost surely, 2^15042425 is an apocalyptic number.

It is an amenable number.

15042425 is a deficient number, since it is larger than the sum of its proper divisors (3610213).

15042425 is an equidigital number, since it uses as much as digits as its factorization.

15042425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601707 (or 601702 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 15042425 is about 3878.4565228967. The cubic root of 15042425 is about 246.8534975664.

Adding to 15042425 its reverse (52424051), we get a palindrome (67466476).

The spelling of 15042425 in words is "fifteen million, forty-two thousand, four hundred twenty-five".