540621455 has 8 divisors (see below), whose sum is σ = 707722704. Its totient is φ = 393179200.

The previous prime is 540621427. The next prime is 540621469. The reversal of 540621455 is 554126045.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 540621455 - 2¹⁴ = 540605071 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 7 ways as a sum of consecutive naturals, for example, 4914686 + ... + 4914795.

It is an arithmetic number, because the mean of its divisors is an integer number (88465338).

Almost surely, 2^540621455 is an apocalyptic number.

540621455 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

540621455 is a deficient number, since it is larger than the sum of its proper divisors (167101249).

540621455 is a wasteful number, since it uses less digits than its factorization.

540621455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9829497.

The product of its (nonzero) digits is 24000, while the sum is 32.

The square root of 540621455 is about 23251.2678148956. The cubic root of 540621455 is about 814.6375519598.

The spelling of 540621455 in words is "five hundred forty million, six hundred twenty-one thousand, four hundred fifty-five".