53011249540 has 12 divisors (see below), whose sum is σ = 111323624076. Its totient is φ = 21204499808.

The previous prime is 53011249523. The next prime is 53011249541. The reversal of 53011249540 is 4594211035.

It can be written as a sum of positive squares in 2 ways, for example, as 15570547524 + 37440702016 = 124782^2 + 193496^2 .

It is a junction number, because it is equal to n+sod(n) for n = 53011249496 and 53011249505.

It is not an unprimeable number, because it can be changed into a prime (53011249541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1325281219 + ... + 1325281258.

It is an arithmetic number, because the mean of its divisors is an integer number (9276968673).

Almost surely, 2^53011249540 is an apocalyptic number.

It is an amenable number.

53011249540 is an abundant number, since it is smaller than the sum of its proper divisors (58312374536).

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

53011249540 is a wasteful number, since it uses less digits than its factorization.

53011249540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2650562486 (or 2650562484 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 34.

The spelling of 53011249540 in words is "fifty-three billion, eleven million, two hundred forty-nine thousand, five hundred forty".