22553019 has 16 divisors (see below), whose sum is σ = 35171200. Its totient is φ = 14243688.

The previous prime is 22552991. The next prime is 22553023. The reversal of 22553019 is 91035522.

It is not a de Polignac number, because 22553019 - 2⁵ = 22552987 is a prime.

It is a super-2 number, since 2×22553019² = 1017277332028722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22552983 and 22553001.

It is not an unprimeable number, because it can be changed into a prime (22553819) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21469 + ... + 22494.

It is an arithmetic number, because the mean of its divisors is an integer number (2198200).

Almost surely, 2^22553019 is an apocalyptic number.

22553019 is a deficient number, since it is larger than the sum of its proper divisors (12618181).

22553019 is a wasteful number, since it uses less digits than its factorization.

22553019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43991 (or 43985 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 22553019 is about 4749.0018951354. The cubic root of 22553019 is about 282.5323804479.

The spelling of 22553019 in words is "twenty-two million, five hundred fifty-three thousand, nineteen".