537221954 has 8 divisors (see below), whose sum is σ = 806341068. Its totient is φ = 268441600.

The previous prime is 537221933. The next prime is 537221957. The reversal of 537221954 is 459122735.

It can be written as a sum of positive squares in 2 ways, for example, as 529230025 + 7991929 = 23005^2 + 2827^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (537221957) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80687 + ... + 87090.

Almost surely, 2^537221954 is an apocalyptic number.

537221954 is a deficient number, since it is larger than the sum of its proper divisors (269119114).

537221954 is a wasteful number, since it uses less digits than its factorization.

537221954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169380.

The product of its digits is 75600, while the sum is 38.

The square root of 537221954 is about 23178.0489687980. The cubic root of 537221954 is about 812.9264432492.

The spelling of 537221954 in words is "five hundred thirty-seven million, two hundred twenty-one thousand, nine hundred fifty-four".