54101890 has 16 divisors (see below), whose sum is σ = 98558208. Its totient is φ = 21379696.

The previous prime is 54101867. The next prime is 54101891. The reversal of 54101890 is 9810145.

It is a happy number.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (54101891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31762 + ... + 33421.

It is an arithmetic number, because the mean of its divisors is an integer number (6159888).

Almost surely, 2^54101890 is an apocalyptic number.

54101890 is a deficient number, since it is larger than the sum of its proper divisors (44456318).

54101890 is a wasteful number, since it uses less digits than its factorization.

54101890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65273.

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 54101890 is about 7355.3986975554. The cubic root of 54101890 is about 378.2138940422.

The spelling of 54101890 in words is "fifty-four million, one hundred one thousand, eight hundred ninety".