220632051 has 4 divisors (see below), whose sum is σ = 294176072. Its totient is φ = 147088032.

The previous prime is 220632043. The next prime is 220632067. The reversal of 220632051 is 150236022.

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

It is not a de Polignac number, because 220632051 - 2³ = 220632043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220632151) 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, 36772006 + ... + 36772011.

It is an arithmetic number, because the mean of its divisors is an integer number (73544018).

Almost surely, 2^220632051 is an apocalyptic number.

220632051 is a deficient number, since it is larger than the sum of its proper divisors (73544021).

220632051 is an equidigital number, since it uses as much as digits as its factorization.

220632051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73544020.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 220632051 is about 14853.6881278691. The cubic root of 220632051 is about 604.2586379358.

Adding to 220632051 its reverse (150236022), we get a palindrome (370868073).

The spelling of 220632051 in words is "two hundred twenty million, six hundred thirty-two thousand, fifty-one".