53402532 has 24 divisors (see below), whose sum is σ = 126109536. Its totient is φ = 17586048.

The previous prime is 53402519. The next prime is 53402533. The reversal of 53402532 is 23520435.

It is a super-2 number, since 2×53402532² = 5703660848022048, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (53402533) 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, 25813 + ... + 27804.

It is an arithmetic number, because the mean of its divisors is an integer number (5254564).

Almost surely, 2^53402532 is an apocalyptic number.

It is an amenable number.

53402532 is an abundant number, since it is smaller than the sum of its proper divisors (72707004).

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

53402532 is a wasteful number, since it uses less digits than its factorization.

53402532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53707 (or 53705 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 53402532 is about 7307.7036064690. The cubic root of 53402532 is about 376.5771372914.

Adding to 53402532 its reverse (23520435), we get a palindrome (76922967).

The spelling of 53402532 in words is "fifty-three million, four hundred two thousand, five hundred thirty-two".