57612005551 has 4 divisors (see below), whose sum is σ = 61000947072. Its totient is φ = 54223064032.

The previous prime is 57612005533. The next prime is 57612005557. The reversal of 57612005551 is 15550021675.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 57612005551 - 2⁵ = 57612005519 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 57612005551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57612005557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1694470735 + ... + 1694470768.

It is an arithmetic number, because the mean of its divisors is an integer number (15250236768).

Almost surely, 2^57612005551 is an apocalyptic number.

57612005551 is a deficient number, since it is larger than the sum of its proper divisors (3388941521).

57612005551 is a wasteful number, since it uses less digits than its factorization.

57612005551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3388941520.

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

The spelling of 57612005551 in words is "fifty-seven billion, six hundred twelve million, five thousand, five hundred fifty-one".