53545122520 has 32 divisors (see below), whose sum is σ = 120632451120. Its totient is φ = 21390328960.

The previous prime is 53545122509. The next prime is 53545122529. The reversal of 53545122520 is 2522154535.

It is a super-2 number, since 2×53545122520² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53545122529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 834946 + ... + 896785.

Almost surely, 2^53545122520 is an apocalyptic number.

It is an amenable number.

53545122520 is an abundant number, since it is smaller than the sum of its proper divisors (67087328600).

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

53545122520 is a wasteful number, since it uses less digits than its factorization.

53545122520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1732515 (or 1732511 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 34.

The spelling of 53545122520 in words is "fifty-three billion, five hundred forty-five million, one hundred twenty-two thousand, five hundred twenty".