507853381 has 4 divisors (see below), whose sum is σ = 580403872. Its totient is φ = 435302892.

The previous prime is 507853369. The next prime is 507853421. The reversal of 507853381 is 183358705.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 507853381 - 2⁹ = 507852869 is a prime.

It is a super-2 number, since 2×507853381² = 515830113186262322, which contains 22 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 (507850381) 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, 36275235 + ... + 36275248.

It is an arithmetic number, because the mean of its divisors is an integer number (145100968).

Almost surely, 2^507853381 is an apocalyptic number.

It is an amenable number.

507853381 is a deficient number, since it is larger than the sum of its proper divisors (72550491).

507853381 is an equidigital number, since it uses as much as digits as its factorization.

507853381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72550490.

The product of its (nonzero) digits is 100800, while the sum is 40.

The square root of 507853381 is about 22535.6025213439. The cubic root of 507853381 is about 797.8344458627.

The spelling of 507853381 in words is "five hundred seven million, eight hundred fifty-three thousand, three hundred eighty-one".