53440547925690 has 96 divisors (see below), whose sum is σ = 140474630552256. Its totient is φ = 14094173721600.

The previous prime is 53440547925617. The next prime is 53440547925731. The reversal of 53440547925690 is 9652974504435.

It is a happy number.

53440547925690 is a `hidden beast` number, since 5 + 3 + 4 + 4 + 0 + 547 + 9 + 25 + 69 + 0 = 666.

It is a super-2 number, since 2×53440547925690² (a number of 28 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (63) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10557829 + ... + 14776631.

It is an arithmetic number, because the mean of its divisors is an integer number (1463277401586).

Almost surely, 2^{53440547925690} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53440547925690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70237315276128).

53440547925690 is an abundant number, since it is smaller than the sum of its proper divisors (87034082626566).

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

53440547925690 is a wasteful number, since it uses less digits than its factorization.

53440547925690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4220364 (or 4220361 counting only the distinct ones).

The product of its (nonzero) digits is 163296000, while the sum is 63.

The spelling of 53440547925690 in words is "fifty-three trillion, four hundred forty billion, five hundred forty-seven million, nine hundred twenty-five thousand, six hundred ninety".