53021423697 has 16 divisors (see below), whose sum is σ = 77328850368. Its totient is φ = 32048038080.

The previous prime is 53021423681. The next prime is 53021423699. The reversal of 53021423697 is 79632412035.

It is not a de Polignac number, because 53021423697 - 2⁴ = 53021423681 is a prime.

It is a super-2 number, since 2×53021423697² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (53021423699) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2141458 + ... + 2166075.

It is an arithmetic number, because the mean of its divisors is an integer number (4833053148).

Almost surely, 2^53021423697 is an apocalyptic number.

It is an amenable number.

53021423697 is a deficient number, since it is larger than the sum of its proper divisors (24307426671).

53021423697 is a wasteful number, since it uses less digits than its factorization.

53021423697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4307920.

The product of its (nonzero) digits is 272160, while the sum is 42.

The spelling of 53021423697 in words is "fifty-three billion, twenty-one million, four hundred twenty-three thousand, six hundred ninety-seven".