54181963 has 4 divisors (see below), whose sum is σ = 59107608. Its totient is φ = 49256320.

The previous prime is 54181961. The next prime is 54181999. The reversal of 54181963 is 36918145.

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 54181963 - 2¹ = 54181961 is a prime.

It is a super-2 number, since 2×54181963² = 5871370229066738, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54181961) 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, 2462806 + ... + 2462827.

It is an arithmetic number, because the mean of its divisors is an integer number (14776902).

Almost surely, 2^54181963 is an apocalyptic number.

54181963 is a deficient number, since it is larger than the sum of its proper divisors (4925645).

54181963 is a wasteful number, since it uses less digits than its factorization.

54181963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4925644.

The product of its digits is 25920, while the sum is 37.

The square root of 54181963 is about 7360.8398298020. The cubic root of 54181963 is about 378.4003927180.

It can be divided in two parts, 5418 and 1963, that added together give a triangular number (7381 = T₁₂₁).

The spelling of 54181963 in words is "fifty-four million, one hundred eighty-one thousand, nine hundred sixty-three".