57151206505 has 8 divisors (see below), whose sum is σ = 68586870600. Its totient is φ = 45717350016.

The previous prime is 57151206487. The next prime is 57151206523. The reversal of 57151206505 is 50560215175.

It is an interprime number because it is at equal distance from previous prime (57151206487) and next prime (57151206523).

It can be written as a sum of positive squares in 4 ways, for example, as 21813222249 + 35337984256 = 147693^2 + 187984^2 .

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 57151206505 - 2⁵ = 57151206473 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 381340 + ... + 509629.

It is an arithmetic number, because the mean of its divisors is an integer number (8573358825).

Almost surely, 2^57151206505 is an apocalyptic number.

It is an amenable number.

57151206505 is a deficient number, since it is larger than the sum of its proper divisors (11435664095).

57151206505 is a wasteful number, since it uses less digits than its factorization.

57151206505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 903803.

The product of its (nonzero) digits is 52500, while the sum is 37.

The spelling of 57151206505 in words is "fifty-seven billion, one hundred fifty-one million, two hundred six thousand, five hundred five".