25542435 has 16 divisors (see below), whose sum is σ = 40930560. Its totient is φ = 13601760.

The previous prime is 25542421. The next prime is 25542437. The reversal of 25542435 is 53424552.

It is not a de Polignac number, because 25542435 - 2⁶ = 25542371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25542437) 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, 18706 + ... + 20024.

It is an arithmetic number, because the mean of its divisors is an integer number (2558160).

Almost surely, 2^25542435 is an apocalyptic number.

25542435 is a deficient number, since it is larger than the sum of its proper divisors (15388125).

25542435 is a wasteful number, since it uses less digits than its factorization.

25542435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2618.

The product of its digits is 24000, while the sum is 30.

The square root of 25542435 is about 5053.9524137055. The cubic root of 25542435 is about 294.5014465278.

Adding to 25542435 its reverse (53424552), we get a palindrome (78966987).

The spelling of 25542435 in words is "twenty-five million, five hundred forty-two thousand, four hundred thirty-five".