2221552623 has 8 divisors (see below), whose sum is σ = 2966952448. Its totient is φ = 1478593944.

The previous prime is 2221552607. The next prime is 2221552667. The reversal of 2221552623 is 3262551222.

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

It is not a de Polignac number, because 2221552623 - 2⁴ = 2221552607 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 (2221552603) 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 7 ways as a sum of consecutive naturals, for example, 608161 + ... + 611802.

It is an arithmetic number, because the mean of its divisors is an integer number (370869056).

Almost surely, 2^2221552623 is an apocalyptic number.

2221552623 is a deficient number, since it is larger than the sum of its proper divisors (745399825).

2221552623 is a wasteful number, since it uses less digits than its factorization.

2221552623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1220573.

The product of its digits is 14400, while the sum is 30.

The square root of 2221552623 is about 47133.3493717559. The cubic root of 2221552623 is about 1304.8247976064.

The spelling of 2221552623 in words is "two billion, two hundred twenty-one million, five hundred fifty-two thousand, six hundred twenty-three".