11604525531 has 8 divisors (see below), whose sum is σ = 15474622464. Its totient is φ = 7735389480.

The previous prime is 11604525509. The next prime is 11604525539. The reversal of 11604525531 is 13552540611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11604525531 - 2⁷ = 11604525403 is a prime.

It is a super-3 number, since 3×11604525531³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 11604525492 and 11604525501.

It is not an unprimeable number, because it can be changed into a prime (11604525539) 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 7 ways as a sum of consecutive naturals, for example, 211551 + ... + 260696.

It is an arithmetic number, because the mean of its divisors is an integer number (1934327808).

Almost surely, 2^11604525531 is an apocalyptic number.

11604525531 is a deficient number, since it is larger than the sum of its proper divisors (3870096933).

11604525531 is an equidigital number, since it uses as much as digits as its factorization.

11604525531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480441.

The product of its (nonzero) digits is 18000, while the sum is 33.

The spelling of 11604525531 in words is "eleven billion, six hundred four million, five hundred twenty-five thousand, five hundred thirty-one".