25552001435 has 32 divisors (see below), whose sum is σ = 31597074432. Its totient is φ = 19827089280.

The previous prime is 25552001429. The next prime is 25552001459. The reversal of 25552001435 is 53410025552.

It is a de Polignac number, because none of the positive numbers 2^k-25552001435 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17657882 + ... + 17659328.

It is an arithmetic number, because the mean of its divisors is an integer number (987408576).

Almost surely, 2^25552001435 is an apocalyptic number.

25552001435 is a deficient number, since it is larger than the sum of its proper divisors (6045072997).

25552001435 is a wasteful number, since it uses less digits than its factorization.

25552001435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2123.

The product of its (nonzero) digits is 30000, while the sum is 32.

Adding to 25552001435 its reverse (53410025552), we get a palindrome (78962026987).

The spelling of 25552001435 in words is "twenty-five billion, five hundred fifty-two million, one thousand, four hundred thirty-five".