542525249 has 4 divisors (see below), whose sum is σ = 620028864. Its totient is φ = 465021636.

The previous prime is 542525239. The next prime is 542525261. The reversal of 542525249 is 942525245.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 542525249 - 2¹⁶ = 542459713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (542525209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38751797 + ... + 38751810.

It is an arithmetic number, because the mean of its divisors is an integer number (155007216).

Almost surely, 2^542525249 is an apocalyptic number.

It is an amenable number.

542525249 is a deficient number, since it is larger than the sum of its proper divisors (77503615).

542525249 is an equidigital number, since it uses as much as digits as its factorization.

542525249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77503614.

The product of its digits is 144000, while the sum is 38.

The square root of 542525249 is about 23292.1714101541. The cubic root of 542525249 is about 815.5926781553.

The spelling of 542525249 in words is "five hundred forty-two million, five hundred twenty-five thousand, two hundred forty-nine".