54781250 has 28 divisors (see below), whose sum is σ = 102772122. Its totient is φ = 21900000.

The previous prime is 54781249. The next prime is 54781267. The reversal of 54781250 is 5218745.

It can be written as a sum of positive squares in 7 ways, for example, as 44662489 + 10118761 = 6683^2 + 3181^2 .

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 30374 + ... + 32126.

Almost surely, 2^54781250 is an apocalyptic number.

54781250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

54781250 is a deficient number, since it is larger than the sum of its proper divisors (47990872).

54781250 is an frugal number, since it uses more digits than its factorization.

54781250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1785 (or 1760 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 32.

The square root of 54781250 is about 7401.4356715437. The cubic root of 54781250 is about 379.7903968722.

Adding to 54781250 its reverse (5218745), we get a palindrome (59999995).

The spelling of 54781250 in words is "fifty-four million, seven hundred eighty-one thousand, two hundred fifty".