25025252527749 has 16 divisors (see below), whose sum is σ = 33400470924800. Its totient is φ = 16666768681920.

The previous prime is 25025252527747. The next prime is 25025252527771. The reversal of 25025252527749 is 94772525252052.

It is not a de Polignac number, because 25025252527749 - 2¹ = 25025252527747 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 (25025252527747) 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, 193513899 + ... + 193643175.

It is an arithmetic number, because the mean of its divisors is an integer number (2087529432800).

Almost surely, 2^{25025252527749} is an apocalyptic number.

It is an amenable number.

25025252527749 is a deficient number, since it is larger than the sum of its proper divisors (8375218397051).

25025252527749 is a wasteful number, since it uses less digits than its factorization.

25025252527749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193500.

The product of its (nonzero) digits is 35280000, while the sum is 57.

The spelling of 25025252527749 in words is "twenty-five trillion, twenty-five billion, two hundred fifty-two million, five hundred twenty-seven thousand, seven hundred forty-nine".