275401515051 has 64 divisors (see below), whose sum is σ = 451175961600. Its totient is φ = 164986543872.

The previous prime is 275401515049. The next prime is 275401515097. The reversal of 275401515051 is 150515104572.

275401515051 is a `hidden beast` number, since 2 + 7 + 540 + 15 + 1 + 50 + 51 = 666.

It is not a de Polignac number, because 275401515051 - 2¹ = 275401515049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 275401514997 and 275401515015.

It is not an unprimeable number, because it can be changed into a prime (275401515031) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2068471 + ... + 2197583.

It is an arithmetic number, because the mean of its divisors is an integer number (7049624400).

Almost surely, 2^275401515051 is an apocalyptic number.

275401515051 is a deficient number, since it is larger than the sum of its proper divisors (175774446549).

275401515051 is a wasteful number, since it uses less digits than its factorization.

275401515051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129297 (or 129291 counting only the distinct ones).

The product of its (nonzero) digits is 35000, while the sum is 36.

The spelling of 275401515051 in words is "two hundred seventy-five billion, four hundred one million, five hundred fifteen thousand, fifty-one".