54574461432187 has 4 divisors (see below), whose sum is σ = 55469124734416. Its totient is φ = 53679798129960.

The previous prime is 54574461432121. The next prime is 54574461432221. The reversal of 54574461432187 is 78123416447545.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54574461432187 is a prime.

It is a super-2 number, since 2×54574461432187² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (61), and also a Moran number because the ratio is a prime number: 894663302167 = 54574461432187 / (5 + 4 + 5 + 7 + 4 + 4 + 6 + 1 + 4 + 3 + 2 + 1 + 8 + 7).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54574461532187) 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, 447331651023 + ... + 447331651144.

It is an arithmetic number, because the mean of its divisors is an integer number (13867281183604).

Almost surely, 2^{54574461432187} is an apocalyptic number.

54574461432187 is a deficient number, since it is larger than the sum of its proper divisors (894663302229).

54574461432187 is an equidigital number, since it uses as much as digits as its factorization.

54574461432187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 894663302228.

The product of its digits is 90316800, while the sum is 61.

The spelling of 54574461432187 in words is "fifty-four trillion, five hundred seventy-four billion, four hundred sixty-one million, four hundred thirty-two thousand, one hundred eighty-seven".