25532833285561 has 16 divisors (see below), whose sum is σ = 30911834968960. Its totient is φ = 20601368461440.

The previous prime is 25532833285541. The next prime is 25532833285579. The reversal of 25532833285561 is 16558233823552.

It is a cyclic number.

It is not a de Polignac number, because 25532833285561 - 2¹⁷ = 25532833154489 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25532833285496 and 25532833285505.

It is not an unprimeable number, because it can be changed into a prime (25532833285501) 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, 611368260 + ... + 611410021.

It is an arithmetic number, because the mean of its divisors is an integer number (1931989685560).

Almost surely, 2^{25532833285561} is an apocalyptic number.

It is an amenable number.

25532833285561 is a deficient number, since it is larger than the sum of its proper divisors (5379001683399).

25532833285561 is a wasteful number, since it uses less digits than its factorization.

25532833285561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1222778464.

The product of its digits is 51840000, while the sum is 58.

The spelling of 25532833285561 in words is "twenty-five trillion, five hundred thirty-two billion, eight hundred thirty-three million, two hundred eighty-five thousand, five hundred sixty-one".