25527516278025 has 24 divisors (see below), whose sum is σ = 42215180944384. Its totient is φ = 13611550392000.

The previous prime is 25527516278003. The next prime is 25527516278083. The reversal of 25527516278025 is 52087261572552.

It is not a de Polignac number, because 25527516278025 - 2¹⁰ = 25527516277001 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38733001 + ... + 39386550.

Almost surely, 2^{25527516278025} is an apocalyptic number.

25527516278025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25527516278025 is a deficient number, since it is larger than the sum of its proper divisors (16687664666359).

25527516278025 is a wasteful number, since it uses less digits than its factorization.

25527516278025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78123921 (or 78123916 counting only the distinct ones).

The product of its (nonzero) digits is 23520000, while the sum is 57.

The spelling of 25527516278025 in words is "twenty-five trillion, five hundred twenty-seven billion, five hundred sixteen million, two hundred seventy-eight thousand, twenty-five".