42919553 has 2 divisors, whose sum is σ = 42919554. Its totient is φ = 42919552.

The previous prime is 42919511. The next prime is 42919567. The reversal of 42919553 is 35591924.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41770369 + 1149184 = 6463^2 + 1072^2 .

It is a cyclic number.

It is not a de Polignac number, because 42919553 - 2¹⁸ = 42657409 is a prime.

It is not a weakly prime, because it can be changed into another prime (42919573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21459776 + 21459777.

It is an arithmetic number, because the mean of its divisors is an integer number (21459777).

Almost surely, 2^42919553 is an apocalyptic number.

It is an amenable number.

42919553 is a deficient number, since it is larger than the sum of its proper divisors (1).

42919553 is an equidigital number, since it uses as much as digits as its factorization.

42919553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48600, while the sum is 38.

The square root of 42919553 is about 6551.3016263946. The cubic root of 42919553 is about 350.1211906848.

The spelling of 42919553 in words is "forty-two million, nine hundred nineteen thousand, five hundred fifty-three".