25515452303 has 16 divisors (see below), whose sum is σ = 30268953504. Its totient is φ = 21241359360.

The previous prime is 25515452243. The next prime is 25515452309. The reversal of 25515452303 is 30325451552.

It is a cyclic number.

It is not a de Polignac number, because 25515452303 - 2¹⁰ = 25515451279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25515452309) 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, 1836950 + ... + 1850787.

It is an arithmetic number, because the mean of its divisors is an integer number (1891809594).

Almost surely, 2^25515452303 is an apocalyptic number.

25515452303 is a deficient number, since it is larger than the sum of its proper divisors (4753501201).

25515452303 is a wasteful number, since it uses less digits than its factorization.

25515452303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3687802.

The product of its (nonzero) digits is 90000, while the sum is 35.

The spelling of 25515452303 in words is "twenty-five billion, five hundred fifteen million, four hundred fifty-two thousand, three hundred three".