53249886 has 40 divisors (see below), whose sum is σ = 119877120. Its totient is φ = 17667072.

The previous prime is 53249881. The next prime is 53249893. The reversal of 53249886 is 68894235.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53249881) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 40995 + ... + 42273.

It is an arithmetic number, because the mean of its divisors is an integer number (2996928).

Almost surely, 2^53249886 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53249886, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59938560).

53249886 is an abundant number, since it is smaller than the sum of its proper divisors (66627234).

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

53249886 is a wasteful number, since it uses less digits than its factorization.

53249886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1550 (or 1541 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 53249886 is about 7297.2519485077. The cubic root of 53249886 is about 376.2179917069.

The spelling of 53249886 in words is "fifty-three million, two hundred forty-nine thousand, eight hundred eighty-six".