28525177152582 has 32 divisors (see below), whose sum is σ = 64244387257344. Its totient is φ = 8365154589600.

The previous prime is 28525177152581. The next prime is 28525177152599.

28525177152582 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×28525177152582² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28525177152581) 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 15 ways as a sum of consecutive naturals, for example, 6970960113 + ... + 6970964204.

It is an arithmetic number, because the mean of its divisors is an integer number (2007637101792).

Almost surely, 2^{28525177152582} is an apocalyptic number.

28525177152582 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28525177152582 is an abundant number, since it is smaller than the sum of its proper divisors (35719210104762).

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

28525177152582 is a wasteful number, since it uses less digits than its factorization.

28525177152582 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13941924364.

The product of its digits is 31360000, while the sum is 60.

The spelling of 28525177152582 in words is "twenty-eight trillion, five hundred twenty-five billion, one hundred seventy-seven million, one hundred fifty-two thousand, five hundred eighty-two".