54278242590 has 512 divisors, whose sum is σ = 166797066240. Its totient is φ = 11108966400.

The previous prime is 54278242589. The next prime is 54278242619. The reversal of 54278242590 is 9524287245.

It is a super-2 number, since 2×54278242590² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 480338374 + ... + 480338486.

It is an arithmetic number, because the mean of its divisors is an integer number (325775520).

Almost surely, 2^54278242590 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54278242590, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83398533120).

54278242590 is an abundant number, since it is smaller than the sum of its proper divisors (112518823650).

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

54278242590 is a wasteful number, since it uses less digits than its factorization.

54278242590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320.

The product of its (nonzero) digits is 1612800, while the sum is 48.

The spelling of 54278242590 in words is "fifty-four billion, two hundred seventy-eight million, two hundred forty-two thousand, five hundred ninety".