54465138 has 96 divisors (see below), whose sum is σ = 148966272. Its totient is φ = 13996800.

The previous prime is 54465137. The next prime is 54465139. The reversal of 54465138 is 83156445.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (54465137) and next prime (54465139).

It is not an unprimeable number, because it can be changed into a prime (54465137) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 66753 + ... + 67563.

It is an arithmetic number, because the mean of its divisors is an integer number (1551732).

Almost surely, 2^54465138 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54465138, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74483136).

54465138 is an abundant number, since it is smaller than the sum of its proper divisors (94501134).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54465138 is a wasteful number, since it uses less digits than its factorization.

54465138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880 (or 877 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The square root of 54465138 is about 7380.0499998306. The cubic root of 54465138 is about 379.0584677842.

The spelling of 54465138 in words is "fifty-four million, four hundred sixty-five thousand, one hundred thirty-eight".