78255058553 has 8 divisors (see below), whose sum is σ = 90254852160. Its totient is φ = 66460389840.

The previous prime is 78255058543. The next prime is 78255058561. The reversal of 78255058553 is 35585055287.

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

It is a cyclic number.

It is not a de Polignac number, because 78255058553 - 2⁶ = 78255058489 is a prime.

It is a super-2 number, since 2×78255058553² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 78255058495 and 78255058504.

It is not an unprimeable number, because it can be changed into a prime (78255058543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51280403 + ... + 51281928.

It is an arithmetic number, because the mean of its divisors is an integer number (11281856520).

Almost surely, 2^78255058553 is an apocalyptic number.

It is an amenable number.

78255058553 is a deficient number, since it is larger than the sum of its proper divisors (11999793607).

78255058553 is a wasteful number, since it uses less digits than its factorization.

78255058553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102562447.

The product of its (nonzero) digits is 8400000, while the sum is 53.

The spelling of 78255058553 in words is "seventy-eight billion, two hundred fifty-five million, fifty-eight thousand, five hundred fifty-three".