53615255412566 has 4 divisors (see below), whose sum is σ = 80422883118852. Its totient is φ = 26807627706282.

The previous prime is 53615255412539. The next prime is 53615255412571. The reversal of 53615255412566 is 66521455251635.

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

It is a super-2 number, since 2×53615255412566² (a number of 28 digits) contains 22 as substring.

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, 13403813853140 + ... + 13403813853143.

It is an arithmetic number, because the mean of its divisors is an integer number (20105720779713).

Almost surely, 2^{53615255412566} is an apocalyptic number.

53615255412566 is a deficient number, since it is larger than the sum of its proper divisors (26807627706286).

53615255412566 is a wasteful number, since it uses less digits than its factorization.

53615255412566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26807627706285.

The product of its digits is 32400000, while the sum is 56.

The spelling of 53615255412566 in words is "fifty-three trillion, six hundred fifteen billion, two hundred fifty-five million, four hundred twelve thousand, five hundred sixty-six".