537155903 has 6 divisors (see below), whose sum is σ = 548830176. Its totient is φ = 525724892.

The previous prime is 537155891. The next prime is 537155917. The reversal of 537155903 is 309551735.

It is not a de Polignac number, because 537155903 - 2¹² = 537151807 is a prime.

It is a super-5 number, since 5×537155903⁵ (a number of 45 digits) contains 55555 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (537155803) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 119375 + ... + 123792.

It is an arithmetic number, because the mean of its divisors is an integer number (91471696).

Almost surely, 2^537155903 is an apocalyptic number.

537155903 is a deficient number, since it is larger than the sum of its proper divisors (11674273).

537155903 is an equidigital number, since it uses as much as digits as its factorization.

537155903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243261 (or 243214 counting only the distinct ones).

The product of its (nonzero) digits is 70875, while the sum is 38.

The square root of 537155903 is about 23176.6240639141. The cubic root of 537155903 is about 812.8931256699.

The spelling of 537155903 in words is "five hundred thirty-seven million, one hundred fifty-five thousand, nine hundred three".