516421548 has 48 divisors (see below), whose sum is σ = 1344493920. Its totient is φ = 171417600.

The previous prime is 516421541. The next prime is 516421561. The reversal of 516421548 is 845124615.

It is a happy number.

516421548 is a `hidden beast` number, since 5 + 1 + 642 + 1 + 5 + 4 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (516421541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16108 + ... + 35948.

It is an arithmetic number, because the mean of its divisors is an integer number (28010290).

Almost surely, 2^516421548 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 516421548, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (672246960).

516421548 is an abundant number, since it is smaller than the sum of its proper divisors (828072372).

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

516421548 is a wasteful number, since it uses less digits than its factorization.

516421548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20095 (or 20087 counting only the distinct ones).

The product of its digits is 38400, while the sum is 36.

The square root of 516421548 is about 22724.9102968527. The cubic root of 516421548 is about 802.2962920803.

The spelling of 516421548 in words is "five hundred sixteen million, four hundred twenty-one thousand, five hundred forty-eight".