25533980829 has 48 divisors (see below), whose sum is σ = 42664901760. Its totient is φ = 14413386240.

The previous prime is 25533980803. The next prime is 25533980833. The reversal of 25533980829 is 92808933552.

25533980829 is a `hidden beast` number, since 2 + 5 + 533 + 9 + 80 + 8 + 29 = 666.

It is not a de Polignac number, because 25533980829 - 2¹³ = 25533972637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25533980029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11947449 + ... + 11949585.

It is an arithmetic number, because the mean of its divisors is an integer number (888852120).

Almost surely, 2^25533980829 is an apocalyptic number.

It is an amenable number.

25533980829 is a deficient number, since it is larger than the sum of its proper divisors (17130920931).

25533980829 is a wasteful number, since it uses less digits than its factorization.

25533980829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4370 (or 4367 counting only the distinct ones).

The product of its (nonzero) digits is 4665600, while the sum is 54.

The spelling of 25533980829 in words is "twenty-five billion, five hundred thirty-three million, nine hundred eighty thousand, eight hundred twenty-nine".