511540255 has 16 divisors (see below), whose sum is σ = 634369824. Its totient is φ = 395740800.

The previous prime is 511540241. The next prime is 511540261. The reversal of 511540255 is 552045115.

It is not a de Polignac number, because 511540255 - 2¹⁵ = 511507487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9937 + ... + 33493.

It is an arithmetic number, because the mean of its divisors is an integer number (39648114).

Almost surely, 2^511540255 is an apocalyptic number.

511540255 is a deficient number, since it is larger than the sum of its proper divisors (122829569).

511540255 is a wasteful number, since it uses less digits than its factorization.

511540255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23706.

The product of its (nonzero) digits is 5000, while the sum is 28.

The square root of 511540255 is about 22617.2556911753. The cubic root of 511540255 is about 799.7604777727.

The spelling of 511540255 in words is "five hundred eleven million, five hundred forty thousand, two hundred fifty-five".