25030780775 has 48 divisors (see below), whose sum is σ = 41673666048. Its totient is φ = 14403312000.

The previous prime is 25030780559. The next prime is 25030780787. The reversal of 25030780775 is 57708703052.

It is not a de Polignac number, because 25030780775 - 2¹⁶ = 25030715239 is a prime.

It is a super-2 number, since 2×25030780775² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 475091 + ... + 525140.

It is an arithmetic number, because the mean of its divisors is an integer number (868201376).

Almost surely, 2^25030780775 is an apocalyptic number.

25030780775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25030780775 is a deficient number, since it is larger than the sum of its proper divisors (16642885273).

25030780775 is a wasteful number, since it uses less digits than its factorization.

25030780775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000272 (or 1000267 counting only the distinct ones).

The product of its (nonzero) digits is 411600, while the sum is 44.

The spelling of 25030780775 in words is "twenty-five billion, thirty million, seven hundred eighty thousand, seven hundred seventy-five".