537492421 has 4 divisors (see below), whose sum is σ = 539087692. Its totient is φ = 535897152.

The previous prime is 537492413. The next prime is 537492427. The reversal of 537492421 is 124294735.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 361532196 + 175960225 = 19014^2 + 13265^2 .

It is a cyclic number.

It is not a de Polignac number, because 537492421 - 2³ = 537492413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (537492427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 797130 + ... + 797803.

It is an arithmetic number, because the mean of its divisors is an integer number (134771923).

Almost surely, 2^537492421 is an apocalyptic number.

It is an amenable number.

537492421 is a deficient number, since it is larger than the sum of its proper divisors (1595271).

537492421 is a wasteful number, since it uses less digits than its factorization.

537492421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1595270.

The product of its digits is 60480, while the sum is 37.

The square root of 537492421 is about 23183.8827852454. The cubic root of 537492421 is about 813.0628442822.

The spelling of 537492421 in words is "five hundred thirty-seven million, four hundred ninety-two thousand, four hundred twenty-one".