537998554 has 4 divisors (see below), whose sum is σ = 806997834. Its totient is φ = 268999276.

The previous prime is 537998551. The next prime is 537998563. The reversal of 537998554 is 455899735.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 455899735 = 5 ⋅91179947.

It can be written as a sum of positive squares in only one way, i.e., 480617929 + 57380625 = 21923^2 + 7575^2 .

It is a junction number, because it is equal to n+sod(n) for n = 537998495 and 537998504.

It is not an unprimeable number, because it can be changed into a prime (537998551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134499637 + ... + 134499640.

Almost surely, 2^537998554 is an apocalyptic number.

537998554 is a deficient number, since it is larger than the sum of its proper divisors (268999280).

537998554 is a wasteful number, since it uses less digits than its factorization.

537998554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268999279.

The product of its digits is 6804000, while the sum is 55.

The square root of 537998554 is about 23194.7958387221. The cubic root of 537998554 is about 813.3179727384.

It can be divided in two parts, 537998 and 554, that multiplied together give a palindrome (298050892).

The spelling of 537998554 in words is "five hundred thirty-seven million, nine hundred ninety-eight thousand, five hundred fifty-four".