220526497 has 4 divisors (see below), whose sum is σ = 223632576. Its totient is φ = 217420420.

The previous prime is 220526477. The next prime is 220526519. The reversal of 220526497 is 794625022.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 220526497 - 2¹⁵ = 220493729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220526447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1552933 + ... + 1553074.

It is an arithmetic number, because the mean of its divisors is an integer number (55908144).

Almost surely, 2^220526497 is an apocalyptic number.

It is an amenable number.

220526497 is a deficient number, since it is larger than the sum of its proper divisors (3106079).

220526497 is an equidigital number, since it uses as much as digits as its factorization.

220526497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3106078.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 220526497 is about 14850.1345785148. The cubic root of 220526497 is about 604.1622601428.

The spelling of 220526497 in words is "two hundred twenty million, five hundred twenty-six thousand, four hundred ninety-seven".