54807830 has 128 divisors (see below), whose sum is σ = 134369280. Its totient is φ = 15575040.

The previous prime is 54807821. The next prime is 54807859. The reversal of 54807830 is 3870845.

54807830 = 358² + 359² + ... + 594².

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 693731 + ... + 693809.

It is an arithmetic number, because the mean of its divisors is an integer number (1049760).

Almost surely, 2^54807830 is an apocalyptic number.

54807830 is an abundant number, since it is smaller than the sum of its proper divisors (79561450).

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

54807830 is a wasteful number, since it uses less digits than its factorization.

54807830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174.

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 54807830 is about 7403.2310513721. The cubic root of 54807830 is about 379.8518120250.

The spelling of 54807830 in words is "fifty-four million, eight hundred seven thousand, eight hundred thirty".