78000054 has 32 divisors (see below), whose sum is σ = 179141760. Its totient is φ = 22392000.

The previous prime is 78000049. The next prime is 78000059. The reversal of 78000054 is 45000087.

It is an interprime number because it is at equal distance from previous prime (78000049) and next prime (78000059).

It is a junction number, because it is equal to n+sod(n) for n = 77999988 and 78000033.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78000059) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29847 + ... + 32354.

It is an arithmetic number, because the mean of its divisors is an integer number (5598180).

Almost surely, 2^78000054 is an apocalyptic number.

78000054 is an abundant number, since it is smaller than the sum of its proper divisors (101141706).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78000054 is a wasteful number, since it uses less digits than its factorization.

78000054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62236.

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 78000054 is about 8831.7639234753. The cubic root of 78000054 is about 427.2659667696.

The spelling of 78000054 in words is "seventy-eight million, fifty-four", and thus it is an aban number.