155226653 has 4 divisors (see below), whose sum is σ = 155275548. Its totient is φ = 155177760.

The previous prime is 155226623. The next prime is 155226691. The reversal of 155226653 is 356622551.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 356622551 = 41 ⋅8698111.

It can be written as a sum of positive squares in 2 ways, for example, as 68773849 + 86452804 = 8293^2 + 9298^2 .

It is a cyclic number.

It is not a de Polignac number, because 155226653 - 2¹⁶ = 155161117 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155226613) 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, 19328 + ... + 26153.

It is an arithmetic number, because the mean of its divisors is an integer number (38818887).

Almost surely, 2^155226653 is an apocalyptic number.

It is an amenable number.

155226653 is a deficient number, since it is larger than the sum of its proper divisors (48895).

155226653 is an equidigital number, since it uses as much as digits as its factorization.

155226653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48894.

The product of its digits is 54000, while the sum is 35.

The square root of 155226653 is about 12458.9988763143. The cubic root of 155226653 is about 537.4302377821.

The spelling of 155226653 in words is "one hundred fifty-five million, two hundred twenty-six thousand, six hundred fifty-three".