78651055 has 8 divisors (see below), whose sum is σ = 107864352. Its totient is φ = 53932128.

The previous prime is 78651047. The next prime is 78651107. The reversal of 78651055 is 55015687.

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 78651055 - 2³ = 78651047 is a prime.

It is a super-2 number, since 2×78651055² = 12371976905226050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1123552 + ... + 1123621.

It is an arithmetic number, because the mean of its divisors is an integer number (13483044).

Almost surely, 2^78651055 is an apocalyptic number.

78651055 is a deficient number, since it is larger than the sum of its proper divisors (29213297).

78651055 is a wasteful number, since it uses less digits than its factorization.

78651055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2247185.

The product of its (nonzero) digits is 42000, while the sum is 37.

The square root of 78651055 is about 8868.5430032221. The cubic root of 78651055 is about 428.4513518893.

The spelling of 78651055 in words is "seventy-eight million, six hundred fifty-one thousand, fifty-five".