540256651 has 12 divisors (see below), whose sum is σ = 628769736. Its totient is φ = 462249920.

The previous prime is 540256627. The next prime is 540256693. The reversal of 540256651 is 156652045.

It is not a de Polignac number, because 540256651 - 2²⁵ = 506702219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (540256751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 129265 + ... + 133378.

It is an arithmetic number, because the mean of its divisors is an integer number (52397478).

Almost surely, 2^540256651 is an apocalyptic number.

540256651 is a deficient number, since it is larger than the sum of its proper divisors (88513085).

540256651 is a wasteful number, since it uses less digits than its factorization.

540256651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262682 (or 262671 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 34.

The square root of 540256651 is about 23243.4216715182. The cubic root of 540256651 is about 814.4542752851.

The spelling of 540256651 in words is "five hundred forty million, two hundred fifty-six thousand, six hundred fifty-one".