56551530151 has 4 divisors (see below), whose sum is σ = 56776835304. Its totient is φ = 56326225000.

The previous prime is 56551530097. The next prime is 56551530173. The reversal of 56551530151 is 15103515565.

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 56551530151 - 2¹⁵ = 56551497383 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 56551530151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56551530181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112652200 + ... + 112652701.

It is an arithmetic number, because the mean of its divisors is an integer number (14194208826).

Almost surely, 2^56551530151 is an apocalyptic number.

56551530151 is a deficient number, since it is larger than the sum of its proper divisors (225305153).

56551530151 is a wasteful number, since it uses less digits than its factorization.

56551530151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225305152.

The product of its (nonzero) digits is 56250, while the sum is 37.

The spelling of 56551530151 in words is "fifty-six billion, five hundred fifty-one million, five hundred thirty thousand, one hundred fifty-one".