25387954416903 has 48 divisors (see below), whose sum is σ = 37964992708608. Its totient is φ = 15000324292800.

The previous prime is 25387954416829. The next prime is 25387954416949. The reversal of 25387954416903 is 30961445978352.

It is not a de Polignac number, because 25387954416903 - 2⁸ = 25387954416647 is a prime.

It is a super-2 number, since 2×25387954416903² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25387954411903) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2092938 + ... + 7426728.

It is an arithmetic number, because the mean of its divisors is an integer number (790937348096).

It is a 1-persistent number, because it is pandigital, but 2⋅25387954416903 = 50775908833806 is not.

Almost surely, 2^{25387954416903} is an apocalyptic number.

25387954416903 is a deficient number, since it is larger than the sum of its proper divisors (12577038291705).

25387954416903 is a wasteful number, since it uses less digits than its factorization.

25387954416903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5333996 (or 5333965 counting only the distinct ones).

The product of its (nonzero) digits is 195955200, while the sum is 66.

The spelling of 25387954416903 in words is "twenty-five trillion, three hundred eighty-seven billion, nine hundred fifty-four million, four hundred sixteen thousand, nine hundred three".