54456190509 has 12 divisors (see below), whose sum is σ = 82982491296. Its totient is φ = 31117212072.

The previous prime is 54456190499. The next prime is 54456190519. The reversal of 54456190509 is 90509165445.

It is an interprime number because it is at equal distance from previous prime (54456190499) and next prime (54456190519).

It is not a de Polignac number, because 54456190509 - 2¹² = 54456186413 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54456190519) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1043922 + ... + 1094844.

It is an arithmetic number, because the mean of its divisors is an integer number (6915207608).

Almost surely, 2^54456190509 is an apocalyptic number.

It is an amenable number.

54456190509 is a deficient number, since it is larger than the sum of its proper divisors (28526300787).

54456190509 is an frugal number, since it uses more digits than its factorization.

54456190509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101856 (or 50933 counting only the distinct ones).

The product of its (nonzero) digits is 972000, while the sum is 48.

The spelling of 54456190509 in words is "fifty-four billion, four hundred fifty-six million, one hundred ninety thousand, five hundred nine".