54699840 has 224 divisors, whose sum is σ = 208239360. Its totient is φ = 13436928.

The previous prime is 54699833. The next prime is 54699857. The reversal of 54699840 is 4899645.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 112077 + ... + 112563.

It is an arithmetic number, because the mean of its divisors is an integer number (929640).

Almost surely, 2^54699840 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54699840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104119680).

54699840 is an abundant number, since it is smaller than the sum of its proper divisors (153539520).

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

54699840 is a wasteful number, since it uses less digits than its factorization.

54699840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526 (or 510 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 54699840 is about 7395.9340180940. The cubic root of 54699840 is about 379.6021690577.

The spelling of 54699840 in words is "fifty-four million, six hundred ninety-nine thousand, eight hundred forty".