53721374 has 8 divisors (see below), whose sum is σ = 92093808. Its totient is φ = 23023440.

The previous prime is 53721361. The next prime is 53721391. The reversal of 53721374 is 47312735.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 53721374.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1918607 + ... + 1918634.

It is an arithmetic number, because the mean of its divisors is an integer number (11511726).

Almost surely, 2^53721374 is an apocalyptic number.

53721374 is a deficient number, since it is larger than the sum of its proper divisors (38372434).

53721374 is a wasteful number, since it uses less digits than its factorization.

53721374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3837250.

The product of its digits is 17640, while the sum is 32.

The square root of 53721374 is about 7329.4866123078. The cubic root of 53721374 is about 377.3251070625.

The spelling of 53721374 in words is "fifty-three million, seven hundred twenty-one thousand, three hundred seventy-four".