22257552007 has 4 divisors (see below), whose sum is σ = 22257925240. Its totient is φ = 22257178776.

The previous prime is 22257551993. The next prime is 22257552011. The reversal of 22257552007 is 70025575222.

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 22257552007 - 2¹⁹ = 22257027719 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 (22257552017) 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, 74853 + ... + 223870.

It is an arithmetic number, because the mean of its divisors is an integer number (5564481310).

Almost surely, 2^22257552007 is an apocalyptic number.

22257552007 is a deficient number, since it is larger than the sum of its proper divisors (373233).

22257552007 is an equidigital number, since it uses as much as digits as its factorization.

22257552007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373232.

The product of its (nonzero) digits is 98000, while the sum is 37.

The spelling of 22257552007 in words is "twenty-two billion, two hundred fifty-seven million, five hundred fifty-two thousand, seven".