540625797 has 12 divisors (see below), whose sum is σ = 782066220. Its totient is φ = 359880768.

The previous prime is 540625793. The next prime is 540625853. The reversal of 540625797 is 797526045.

It can be written as a sum of positive squares in 2 ways, for example, as 355284801 + 185340996 = 18849^2 + 13614^2 .

It is not a de Polignac number, because 540625797 - 2² = 540625793 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540625793) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38272 + ... + 50457.

It is an arithmetic number, because the mean of its divisors is an integer number (65172185).

Almost surely, 2^540625797 is an apocalyptic number.

It is an amenable number.

540625797 is a deficient number, since it is larger than the sum of its proper divisors (241440423).

540625797 is a wasteful number, since it uses less digits than its factorization.

540625797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89412 (or 89409 counting only the distinct ones).

The product of its (nonzero) digits is 529200, while the sum is 45.

The square root of 540625797 is about 23251.3611859607. The cubic root of 540625797 is about 814.6397328738.

The spelling of 540625797 in words is "five hundred forty million, six hundred twenty-five thousand, seven hundred ninety-seven".