53681022 has 16 divisors (see below), whose sum is σ = 119291280. Its totient is φ = 17893656.

The previous prime is 53681021. The next prime is 53681027. The reversal of 53681022 is 22018635.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53681021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 496993 + ... + 497100.

It is an arithmetic number, because the mean of its divisors is an integer number (7455705).

Almost surely, 2^53681022 is an apocalyptic number.

53681022 is an abundant number, since it is smaller than the sum of its proper divisors (65610258).

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

53681022 is a wasteful number, since it uses less digits than its factorization.

53681022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 994104 (or 994098 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 53681022 is about 7326.7333785255. The cubic root of 53681022 is about 377.2306093769.

Adding to 53681022 its reverse (22018635), we get a palindrome (75699657).

The spelling of 53681022 in words is "fifty-three million, six hundred eighty-one thousand, twenty-two".