653222401 has 4 divisors (see below), whose sum is σ = 703470292. Its totient is φ = 602974512.

The previous prime is 653222389. The next prime is 653222411. The reversal of 653222401 is 104222356.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 435807376 + 217415025 = 20876^2 + 14745^2 .

It is a cyclic number.

It is not a de Polignac number, because 653222401 - 2¹³ = 653214209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (653222411) 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, 25123926 + ... + 25123951.

It is an arithmetic number, because the mean of its divisors is an integer number (175867573).

Almost surely, 2^653222401 is an apocalyptic number.

It is an amenable number.

653222401 is a deficient number, since it is larger than the sum of its proper divisors (50247891).

653222401 is a wasteful number, since it uses less digits than its factorization.

653222401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50247890.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 653222401 is about 25558.2159197390. The cubic root of 653222401 is about 867.6682179800.

Adding to 653222401 its reverse (104222356), we get a palindrome (757444757).

The spelling of 653222401 in words is "six hundred fifty-three million, two hundred twenty-two thousand, four hundred one".