272435560551 has 72 divisors (see below), whose sum is σ = 499697072784. Its totient is φ = 141435383040.

The previous prime is 272435560549. The next prime is 272435560601. The reversal of 272435560551 is 155065534272.

It is a happy number.

272435560551 is a `hidden beast` number, since 2 + 7 + 2 + 4 + 35 + 5 + 60 + 551 = 666.

It is not a de Polignac number, because 272435560551 - 2¹ = 272435560549 is a prime.

It is a super-2 number, since 2×272435560551² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 272435560497 and 272435560506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (272435560511) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 8021161 + ... + 8055053.

It is an arithmetic number, because the mean of its divisors is an integer number (6940237122).

Almost surely, 2^272435560551 is an apocalyptic number.

272435560551 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

272435560551 is a deficient number, since it is larger than the sum of its proper divisors (227261512233).

272435560551 is a wasteful number, since it uses less digits than its factorization.

272435560551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35581 (or 35571 counting only the distinct ones).

The product of its (nonzero) digits is 1260000, while the sum is 45.

The spelling of 272435560551 in words is "two hundred seventy-two billion, four hundred thirty-five million, five hundred sixty thousand, five hundred fifty-one".