25016542 has 8 divisors (see below), whose sum is σ = 37564632. Its totient is φ = 12495000.

The previous prime is 25016513. The next prime is 25016543. The reversal of 25016542 is 24561052.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25016543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4084 + ... + 8167.

It is an arithmetic number, because the mean of its divisors is an integer number (4695579).

Almost surely, 2^25016542 is an apocalyptic number.

25016542 is the 4084-th pentagonal number.

25016542 is a deficient number, since it is larger than the sum of its proper divisors (12548090).

25016542 is a wasteful number, since it uses less digits than its factorization.

25016542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13274.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 25016542 is about 5001.6539264527. The cubic root of 25016542 is about 292.4662517374.

Adding to 25016542 its reverse (24561052), we get a palindrome (49577594).

The spelling of 25016542 in words is "twenty-five million, sixteen thousand, five hundred forty-two".