25770812502 has 16 divisors (see below), whose sum is σ = 52934642352. Its totient is φ = 8358101280.

The previous prime is 25770812491. The next prime is 25770812537. The reversal of 25770812502 is 20521807752.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58042149 + ... + 58042592.

It is an arithmetic number, because the mean of its divisors is an integer number (3308415147).

Almost surely, 2^25770812502 is an apocalyptic number.

25770812502 is an abundant number, since it is smaller than the sum of its proper divisors (27163829850).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25770812502 is a wasteful number, since it uses less digits than its factorization.

25770812502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116084783.

The product of its (nonzero) digits is 78400, while the sum is 39.

The spelling of 25770812502 in words is "twenty-five billion, seven hundred seventy million, eight hundred twelve thousand, five hundred two".