25285251601 has 8 divisors (see below), whose sum is σ = 25973966304. Its totient is φ = 24601113600.

The previous prime is 25285251521. The next prime is 25285251613. The reversal of 25285251601 is 10615258252.

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

It is a cyclic number.

It is not a de Polignac number, because 25285251601 - 2⁷ = 25285251473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25285251671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1132975 + ... + 1155076.

It is an arithmetic number, because the mean of its divisors is an integer number (3246745788).

Almost surely, 2^25285251601 is an apocalyptic number.

It is an amenable number.

25285251601 is a deficient number, since it is larger than the sum of its proper divisors (688714703).

25285251601 is a wasteful number, since it uses less digits than its factorization.

25285251601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2288351.

The product of its (nonzero) digits is 48000, while the sum is 37.

The spelling of 25285251601 in words is "twenty-five billion, two hundred eighty-five million, two hundred fifty-one thousand, six hundred one".