53021556472 has 32 divisors (see below), whose sum is σ = 104069371680. Its totient is φ = 25277091840.

The previous prime is 53021556463. The next prime is 53021556473. The reversal of 53021556472 is 27465512035.

It is a super-2 number, since 2×53021556472² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53021556473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 402729 + ... + 517912.

It is an arithmetic number, because the mean of its divisors is an integer number (3252167865).

Almost surely, 2^53021556472 is an apocalyptic number.

It is an amenable number.

53021556472 is a deficient number, since it is larger than the sum of its proper divisors (51047815208).

53021556472 is a wasteful number, since it uses less digits than its factorization.

53021556472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 920983 (or 920979 counting only the distinct ones).

The product of its (nonzero) digits is 252000, while the sum is 40.

The spelling of 53021556472 in words is "fifty-three billion, twenty-one million, five hundred fifty-six thousand, four hundred seventy-two".