25061642 has 4 divisors (see below), whose sum is σ = 37592466. Its totient is φ = 12530820.

The previous prime is 25061639. The next prime is 25061657. The reversal of 25061642 is 24616052.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 13845841 + 11215801 = 3721^2 + 3349^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6265409 + ... + 6265412.

Almost surely, 2^25061642 is an apocalyptic number.

25061642 is a deficient number, since it is larger than the sum of its proper divisors (12530824).

25061642 is a wasteful number, since it uses less digits than its factorization.

25061642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12530823.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 25061642 is about 5006.1604049411. The cubic root of 25061642 is about 292.6418996400.

Adding to 25061642 its reverse (24616052), we get a palindrome (49677694).

The spelling of 25061642 in words is "twenty-five million, sixty-one thousand, six hundred forty-two".