54021838 has 16 divisors (see below), whose sum is σ = 90276480. Its totient is φ = 24073056.

The previous prime is 54021833. The next prime is 54021853. The reversal of 54021838 is 83812045.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54021833) 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, 35070 + ... + 36577.

It is an arithmetic number, because the mean of its divisors is an integer number (5642280).

Almost surely, 2^54021838 is an apocalyptic number.

54021838 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

54021838 is a deficient number, since it is larger than the sum of its proper divisors (36254642).

54021838 is a wasteful number, since it uses less digits than its factorization.

54021838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71691.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 54021838 is about 7349.9549658484. The cubic root of 54021838 is about 378.0272602421.

The spelling of 54021838 in words is "fifty-four million, twenty-one thousand, eight hundred thirty-eight".