53621278 has 8 divisors (see below), whose sum is σ = 80504568. Its totient is φ = 26786424.

The previous prime is 53621221. The next prime is 53621297. The reversal of 53621278 is 87212635.

It is a happy number.

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

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, 9201 + ... + 13852.

It is an arithmetic number, because the mean of its divisors is an integer number (10063071).

Almost surely, 2^53621278 is an apocalyptic number.

53621278 is a deficient number, since it is larger than the sum of its proper divisors (26883290).

53621278 is a wasteful number, since it uses less digits than its factorization.

53621278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24218.

The product of its digits is 20160, while the sum is 34.

The square root of 53621278 is about 7322.6551195588. The cubic root of 53621278 is about 377.0906118460.

The spelling of 53621278 in words is "fifty-three million, six hundred twenty-one thousand, two hundred seventy-eight".