78055901 has 8 divisors (see below), whose sum is σ = 97316544. Its totient is φ = 60822720.

The previous prime is 78055889. The next prime is 78055921. The reversal of 78055901 is 10955087.

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

It is not a de Polignac number, because 78055901 - 2⁶ = 78055837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78055921) 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, 506780 + ... + 506933.

It is an arithmetic number, because the mean of its divisors is an integer number (12164568).

Almost surely, 2^78055901 is an apocalyptic number.

It is an amenable number.

78055901 is a deficient number, since it is larger than the sum of its proper divisors (19260643).

78055901 is a wasteful number, since it uses less digits than its factorization.

78055901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1013731.

The product of its (nonzero) digits is 12600, while the sum is 35.

The square root of 78055901 is about 8834.9250704236. The cubic root of 78055901 is about 427.3679146899.

The spelling of 78055901 in words is "seventy-eight million, fifty-five thousand, nine hundred one".