526471221 has 8 divisors (see below), whose sum is σ = 702274624. Its totient is φ = 350824320.

The previous prime is 526471217. The next prime is 526471259. The reversal of 526471221 is 122174625.

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

It is not a de Polignac number, because 526471221 - 2² = 526471217 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (526471291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31036 + ... + 44901.

It is an arithmetic number, because the mean of its divisors is an integer number (87784328).

Almost surely, 2^526471221 is an apocalyptic number.

It is an amenable number.

526471221 is a deficient number, since it is larger than the sum of its proper divisors (175803403).

526471221 is a wasteful number, since it uses less digits than its factorization.

526471221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78251.

The product of its digits is 6720, while the sum is 30.

The square root of 526471221 is about 22944.9606885695. The cubic root of 526471221 is about 807.4671789642.

The spelling of 526471221 in words is "five hundred twenty-six million, four hundred seventy-one thousand, two hundred twenty-one".