4053421512520 has 32 divisors (see below), whose sum is σ = 9656680663800. Its totient is φ = 1525993980928.

The previous prime is 4053421512463. The next prime is 4053421512541. The reversal of 4053421512520 is 252151243504.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4051130358564 + 2291153956 = 2012742^2 + 47866^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2980456315 + ... + 2980457674.

Almost surely, 2^{4053421512520} is an apocalyptic number.

4053421512520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4053421512520 is an abundant number, since it is smaller than the sum of its proper divisors (5603259151280).

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

4053421512520 is a wasteful number, since it uses less digits than its factorization.

4053421512520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5960914017 (or 5960914013 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 34.

The spelling of 4053421512520 in words is "four trillion, fifty-three billion, four hundred twenty-one million, five hundred twelve thousand, five hundred twenty".