85298526251 has 4 divisors (see below), whose sum is σ = 87282212952. Its totient is φ = 83314839552.

The previous prime is 85298526241. The next prime is 85298526329. The reversal of 85298526251 is 15262589258.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 85298526251 - 2¹⁰ = 85298525227 is a prime.

It is a super-2 number, since 2×85298526251² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85298526193 and 85298526202.

It is not an unprimeable number, because it can be changed into a prime (85298526241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 991843286 + ... + 991843371.

It is an arithmetic number, because the mean of its divisors is an integer number (21820553238).

Almost surely, 2^85298526251 is an apocalyptic number.

85298526251 is a deficient number, since it is larger than the sum of its proper divisors (1983686701).

85298526251 is a wasteful number, since it uses less digits than its factorization.

85298526251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1983686700.

The product of its digits is 3456000, while the sum is 53.

The spelling of 85298526251 in words is "eighty-five billion, two hundred ninety-eight million, five hundred twenty-six thousand, two hundred fifty-one".