222153551 has 4 divisors (see below), whose sum is σ = 223281432. Its totient is φ = 221025672.

The previous prime is 222153473. The next prime is 222153557. The reversal of 222153551 is 155351222.

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 222153551 - 2¹⁰ = 222152527 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 222153551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222153557) 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, 563645 + ... + 564038.

It is an arithmetic number, because the mean of its divisors is an integer number (55820358).

Almost surely, 2^222153551 is an apocalyptic number.

222153551 is a deficient number, since it is larger than the sum of its proper divisors (1127881).

222153551 is a wasteful number, since it uses less digits than its factorization.

222153551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1127880.

The product of its digits is 3000, while the sum is 26.

The square root of 222153551 is about 14904.8163692143. The cubic root of 222153551 is about 605.6444659035.

The spelling of 222153551 in words is "two hundred twenty-two million, one hundred fifty-three thousand, five hundred fifty-one".