78292055 has 16 divisors (see below), whose sum is σ = 100885824. Its totient is φ = 58114560.

The previous prime is 78292013. The next prime is 78292057. The reversal of 78292055 is 55029287.

It is not a de Polignac number, because 78292055 - 2¹⁴ = 78275671 is a prime.

It is a super-2 number, since 2×78292055² = 12259291752246050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78292057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 452 + ... + 12521.

It is an arithmetic number, because the mean of its divisors is an integer number (6305364).

Almost surely, 2^78292055 is an apocalyptic number.

78292055 is a deficient number, since it is larger than the sum of its proper divisors (22593769).

78292055 is a wasteful number, since it uses less digits than its factorization.

78292055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13066.

The product of its (nonzero) digits is 50400, while the sum is 38.

The square root of 78292055 is about 8848.2797763181. The cubic root of 78292055 is about 427.7984737774.

The spelling of 78292055 in words is "seventy-eight million, two hundred ninety-two thousand, fifty-five".