53021556475 has 6 divisors (see below), whose sum is σ = 65746730060. Its totient is φ = 42417245160.

The previous prime is 53021556473. The next prime is 53021556509. The reversal of 53021556475 is 57465512035.

It is not a de Polignac number, because 53021556475 - 2¹ = 53021556473 is a prime.

It is a super-2 number, since 2×53021556475² (a number of 22 digits) contains 22 as substring.

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

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1060431105 + ... + 1060431154.

Almost surely, 2^53021556475 is an apocalyptic number.

53021556475 is a deficient number, since it is larger than the sum of its proper divisors (12725173585).

53021556475 is a wasteful number, since it uses less digits than its factorization.

53021556475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2120862269 (or 2120862264 counting only the distinct ones).

The product of its (nonzero) digits is 630000, while the sum is 43.

The spelling of 53021556475 in words is "fifty-three billion, twenty-one million, five hundred fifty-six thousand, four hundred seventy-five".