53020120255440 has 160 divisors (see below), whose sum is σ = 181789568639616. Its totient is φ = 12698373888000.

The previous prime is 53020120255391. The next prime is 53020120255441. The reversal of 53020120255440 is 4455202102035.

It is a happy number.

It is a super-2 number, since 2×53020120255440² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53020120255441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 229528186 + ... + 229759065.

Almost surely, 2^{53020120255440} is an apocalyptic number.

It is an amenable number.

53020120255440 is an abundant number, since it is smaller than the sum of its proper divisors (128769448384176).

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

53020120255440 is a wasteful number, since it uses less digits than its factorization.

53020120255440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459287317 (or 459287311 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 33.

Adding to 53020120255440 its reverse (4455202102035), we get a palindrome (57475322357475).

The spelling of 53020120255440 in words is "fifty-three trillion, twenty billion, one hundred twenty million, two hundred fifty-five thousand, four hundred forty".