545254215540 has 192 divisors, whose sum is σ = 1609296595200. Its totient is φ = 137790664704.

The previous prime is 545254215533. The next prime is 545254215547. The reversal of 545254215540 is 45512452545.

It is an interprime number because it is at equal distance from previous prime (545254215533) and next prime (545254215547).

It is a junction number, because it is equal to n+sod(n) for n = 545254215492 and 545254215501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545254215547) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13217266 + ... + 13258454.

It is an arithmetic number, because the mean of its divisors is an integer number (8381753100).

Almost surely, 2^545254215540 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 545254215540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (804648297600).

545254215540 is an abundant number, since it is smaller than the sum of its proper divisors (1064042379660).

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

545254215540 is a wasteful number, since it uses less digits than its factorization.

545254215540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41394 (or 41392 counting only the distinct ones).

The product of its (nonzero) digits is 800000, while the sum is 42.

The spelling of 545254215540 in words is "five hundred forty-five billion, two hundred fifty-four million, two hundred fifteen thousand, five hundred forty".