54451240 has 32 divisors (see below), whose sum is σ = 122899680. Its totient is φ = 21712192.

The previous prime is 54451219. The next prime is 54451253. The reversal of 54451240 is 4215445.

It is a happy number.

It is a super-3 number, since 3×54451240³ (a number of 24 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11919 + ... + 15841.

It is an arithmetic number, because the mean of its divisors is an integer number (3840615).

Almost surely, 2^54451240 is an apocalyptic number.

It is an amenable number.

54451240 is an abundant number, since it is smaller than the sum of its proper divisors (68448440).

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

54451240 is a wasteful number, since it uses less digits than its factorization.

54451240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4281 (or 4277 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 54451240 is about 7379.1083472192. The cubic root of 54451240 is about 379.0262232884.

Adding to 54451240 its reverse (4215445), we get a palindrome (58666685).

The spelling of 54451240 in words is "fifty-four million, four hundred fifty-one thousand, two hundred forty".