42037553 has 2 divisors, whose sum is σ = 42037554. Its totient is φ = 42037552.

The previous prime is 42037547. The next prime is 42037573. The reversal of 42037553 is 35573024.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31494544 + 10543009 = 5612^2 + 3247^2 .

It is a cyclic number.

It is not a de Polignac number, because 42037553 - 2⁸ = 42037297 is a prime.

It is a super-4 number, since 4×42037553⁴ (a number of 32 digits) contains 4444 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (42037573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21018776 + 21018777.

It is an arithmetic number, because the mean of its divisors is an integer number (21018777).

Almost surely, 2^42037553 is an apocalyptic number.

It is an amenable number.

42037553 is a deficient number, since it is larger than the sum of its proper divisors (1).

42037553 is an equidigital number, since it uses as much as digits as its factorization.

42037553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12600, while the sum is 29.

The square root of 42037553 is about 6483.6373279202. The cubic root of 42037553 is about 347.7062330150.

It can be divided in two parts, 420 and 37553, that added together give a palindrome (37973).

The spelling of 42037553 in words is "forty-two million, thirty-seven thousand, five hundred fifty-three".