54897064020 has 144 divisors (see below), whose sum is σ = 176401160208. Its totient is φ = 13771468800.

The previous prime is 54897063997. The next prime is 54897064043. The reversal of 54897064020 is 2046079845.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (54897063997) and next prime (54897064043).

It can be written as a sum of positive squares in 8 ways, for example, as 11819844 + 54885244176 = 3438^2 + 234276^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10759470 + ... + 10764570.

It is an arithmetic number, because the mean of its divisors is an integer number (1225008057).

Almost surely, 2^54897064020 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 54897064020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88200580104).

54897064020 is an abundant number, since it is smaller than the sum of its proper divisors (121504096188).

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

54897064020 is a wasteful number, since it uses less digits than its factorization.

54897064020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8650 (or 8645 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 54897064020 in words is "fifty-four billion, eight hundred ninety-seven million, sixty-four thousand, twenty".