507825481 has 4 divisors (see below), whose sum is σ = 521550532. Its totient is φ = 494100432.

The previous prime is 507825469. The next prime is 507825491. The reversal of 507825481 is 184528705.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 184528705 = 5 ⋅36905741.

It can be written as a sum of positive squares in 2 ways, for example, as 473497600 + 34327881 = 21760^2 + 5859^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-507825481 is a prime.

It is a super-2 number, since 2×507825481² = 515773438305762722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (507825401) 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, 6862470 + ... + 6862543.

It is an arithmetic number, because the mean of its divisors is an integer number (130387633).

Almost surely, 2^507825481 is an apocalyptic number.

It is an amenable number.

507825481 is a deficient number, since it is larger than the sum of its proper divisors (13725051).

507825481 is a wasteful number, since it uses less digits than its factorization.

507825481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13725050.

The product of its (nonzero) digits is 89600, while the sum is 40.

The square root of 507825481 is about 22534.9834923392. The cubic root of 507825481 is about 797.8198353540.

The spelling of 507825481 in words is "five hundred seven million, eight hundred twenty-five thousand, four hundred eighty-one".