25494037001 has 4 divisors (see below), whose sum is σ = 25494502404. Its totient is φ = 25493571600.

The previous prime is 25494036989. The next prime is 25494037033. The reversal of 25494037001 is 10073049452.

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

It can be written as a sum of positive squares in 2 ways, for example, as 17541678025 + 7952358976 = 132445^2 + 89176^2 .

It is a cyclic number.

It is not a de Polignac number, because 25494037001 - 2⁶ = 25494036937 is a prime.

It is a super-3 number, since 3×25494037001³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25494037091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137570 + ... + 264411.

It is an arithmetic number, because the mean of its divisors is an integer number (6373625601).

Almost surely, 2^25494037001 is an apocalyptic number.

It is an amenable number.

25494037001 is a deficient number, since it is larger than the sum of its proper divisors (465403).

25494037001 is an equidigital number, since it uses as much as digits as its factorization.

25494037001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465402.

The product of its (nonzero) digits is 30240, while the sum is 35.

The spelling of 25494037001 in words is "twenty-five billion, four hundred ninety-four million, thirty-seven thousand, one".