42266537 has 2 divisors, whose sum is σ = 42266538. Its totient is φ = 42266536.

The previous prime is 42266533. The next prime is 42266551. The reversal of 42266537 is 73566224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39891856 + 2374681 = 6316^2 + 1541^2 .

It is a cyclic number.

It is not a de Polignac number, because 42266537 - 2² = 42266533 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42266497 and 42266506.

It is not a weakly prime, because it can be changed into another prime (42266533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21133268 + 21133269.

It is an arithmetic number, because the mean of its divisors is an integer number (21133269).

Almost surely, 2^42266537 is an apocalyptic number.

It is an amenable number.

42266537 is a deficient number, since it is larger than the sum of its proper divisors (1).

42266537 is an equidigital number, since it uses as much as digits as its factorization.

42266537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60480, while the sum is 35.

The square root of 42266537 is about 6501.2719524721. The cubic root of 42266537 is about 348.3364237928.

The spelling of 42266537 in words is "forty-two million, two hundred sixty-six thousand, five hundred thirty-seven".