53621510654 has 4 divisors (see below), whose sum is σ = 80432265984. Its totient is φ = 26810755326.

The previous prime is 53621510633. The next prime is 53621510669. The reversal of 53621510654 is 45601512635.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13405377662 + ... + 13405377665.

It is an arithmetic number, because the mean of its divisors is an integer number (20108066496).

Almost surely, 2^53621510654 is an apocalyptic number.

53621510654 is a deficient number, since it is larger than the sum of its proper divisors (26810755330).

53621510654 is a wasteful number, since it uses less digits than its factorization.

53621510654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26810755329.

The product of its (nonzero) digits is 108000, while the sum is 38.

The spelling of 53621510654 in words is "fifty-three billion, six hundred twenty-one million, five hundred ten thousand, six hundred fifty-four".