54721573370 has 16 divisors (see below), whose sum is σ = 98882100648. Its totient is φ = 21803458560.

The previous prime is 54721573351. The next prime is 54721573381. The reversal of 54721573370 is 7337512745.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 54649815529 + 71757841 = 233773^2 + 8471^2 .

It is a super-3 number, since 3×54721573370³ (a number of 33 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10643651 + ... + 10648790.

Almost surely, 2^54721573370 is an apocalyptic number.

54721573370 is a deficient number, since it is larger than the sum of its proper divisors (44160527278).

54721573370 is a wasteful number, since it uses less digits than its factorization.

54721573370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21292705.

The product of its (nonzero) digits is 617400, while the sum is 44.

The spelling of 54721573370 in words is "fifty-four billion, seven hundred twenty-one million, five hundred seventy-three thousand, three hundred seventy".