57030055 has 8 divisors (see below), whose sum is σ = 68492592. Its totient is φ = 45586368.

The previous prime is 57030013. The next prime is 57030073. The reversal of 57030055 is 55003075.

It is a happy number.

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 57030055 - 2¹³ = 57021863 is a prime.

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, 3139 + ... + 11131.

It is an arithmetic number, because the mean of its divisors is an integer number (8561574).

Almost surely, 2^57030055 is an apocalyptic number.

57030055 is a deficient number, since it is larger than the sum of its proper divisors (11462537).

57030055 is a wasteful number, since it uses less digits than its factorization.

57030055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9425.

The product of its (nonzero) digits is 2625, while the sum is 25.

The square root of 57030055 is about 7551.8246139592. The cubic root of 57030055 is about 384.9177425884.

It can be divided in two parts, 570 and 30055, that added together give a square (30625 = 175²).

The spelling of 57030055 in words is "fifty-seven million, thirty thousand, fifty-five".