53722278 has 40 divisors (see below), whose sum is σ = 127465272. Its totient is φ = 16853184.

The previous prime is 53722267. The next prime is 53722289. The reversal of 53722278 is 87222735.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (53722267) and next prime (53722289).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 7000 + ... + 12507.

Almost surely, 2^53722278 is an apocalyptic number.

53722278 is an abundant number, since it is smaller than the sum of its proper divisors (73742994).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53722278 is a wasteful number, since it uses less digits than its factorization.

53722278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19538 (or 19529 counting only the distinct ones).

The product of its digits is 47040, while the sum is 36.

The square root of 53722278 is about 7329.5482807606. The cubic root of 53722278 is about 377.3272235384.

The spelling of 53722278 in words is "fifty-three million, seven hundred twenty-two thousand, two hundred seventy-eight".