76420055 has 8 divisors (see below), whose sum is σ = 92185344. Its totient is φ = 60815200.

The previous prime is 76420051. The next prime is 76420063. The reversal of 76420055 is 55002467.

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

It is not a de Polignac number, because 76420055 - 2² = 76420051 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 (76420051) 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, 39056 + ... + 40965.

It is an arithmetic number, because the mean of its divisors is an integer number (11523168).

Almost surely, 2^76420055 is an apocalyptic number.

76420055 is a deficient number, since it is larger than the sum of its proper divisors (15765289).

76420055 is a wasteful number, since it uses less digits than its factorization.

76420055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80217.

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 76420055 is about 8741.8564961912. The cubic root of 76420055 is about 424.3613105553.

The spelling of 76420055 in words is "seventy-six million, four hundred twenty thousand, fifty-five".