53439480 has 64 divisors (see below), whose sum is σ = 178135200. Its totient is φ = 14250240.

The previous prime is 53439473. The next prime is 53439487. The reversal of 53439480 is 8493435.

It is an interprime number because it is at equal distance from previous prime (53439473) and next prime (53439487).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53439487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23661 + ... + 25820.

Almost surely, 2^53439480 is an apocalyptic number.

It is an amenable number.

53439480 is an abundant number, since it is smaller than the sum of its proper divisors (124695720).

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

53439480 is a wasteful number, since it uses less digits than its factorization.

53439480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49501 (or 49491 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 53439480 is about 7310.2311864947. The cubic root of 53439480 is about 376.6639656614.

The spelling of 53439480 in words is "fifty-three million, four hundred thirty-nine thousand, four hundred eighty".