22053397 has 4 divisors (see below), whose sum is σ = 22113856. Its totient is φ = 21992940.

The previous prime is 22053377. The next prime is 22053401. The reversal of 22053397 is 79335022.

22053397 is nontrivially palindromic in base 2.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22053397 - 2²³ = 13664789 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 (22053347) 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, 29679 + ... + 30412.

It is an arithmetic number, because the mean of its divisors is an integer number (5528464).

Almost surely, 2^22053397 is an apocalyptic number.

It is an amenable number.

22053397 is a deficient number, since it is larger than the sum of its proper divisors (60459).

22053397 is an equidigital number, since it uses as much as digits as its factorization.

22053397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60458.

The product of its (nonzero) digits is 11340, while the sum is 31.

The square root of 22053397 is about 4696.1044494347. The cubic root of 22053397 is about 280.4304476221.

It can be divided in two parts, 2205 and 3397, that multiplied together give a triangular number (7490385 = T₃₈₇₀).

The spelling of 22053397 in words is "twenty-two million, fifty-three thousand, three hundred ninety-seven".