542624657 has 2 divisors, whose sum is σ = 542624658. Its totient is φ = 542624656.

The previous prime is 542624609. The next prime is 542624669. The reversal of 542624657 is 756426245.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 501356881 + 41267776 = 22391^2 + 6424^2 .

It is a cyclic number.

It is not a de Polignac number, because 542624657 - 2¹⁴ = 542608273 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (542624557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271312328 + 271312329.

It is an arithmetic number, because the mean of its divisors is an integer number (271312329).

Almost surely, 2^542624657 is an apocalyptic number.

It is an amenable number.

542624657 is a deficient number, since it is larger than the sum of its proper divisors (1).

542624657 is an equidigital number, since it uses as much as digits as its factorization.

542624657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 403200, while the sum is 41.

The square root of 542624657 is about 23294.3052482790. The cubic root of 542624657 is about 815.6424893457.

The spelling of 542624657 in words is "five hundred forty-two million, six hundred twenty-four thousand, six hundred fifty-seven".