54651240 has 128 divisors (see below), whose sum is σ = 208224000. Its totient is φ = 12489984.

The previous prime is 54651227. The next prime is 54651253. The reversal of 54651240 is 4215645.

54651240 is a `hidden beast` number, since 5 + 4 + 651 + 2 + 4 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (54651227) and next prime (54651253).

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 3946 + ... + 11174.

It is an arithmetic number, because the mean of its divisors is an integer number (1626750).

Almost surely, 2^54651240 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 54651240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104112000).

54651240 is an abundant number, since it is smaller than the sum of its proper divisors (153572760).

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

54651240 is a wasteful number, since it uses less digits than its factorization.

54651240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7256 (or 7246 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 54651240 is about 7392.6476988965. The cubic root of 54651240 is about 379.4897121053.

Adding to 54651240 its reverse (4215645), we get a palindrome (58866885).

The spelling of 54651240 in words is "fifty-four million, six hundred fifty-one thousand, two hundred forty".