253713805 has 8 divisors (see below), whose sum is σ = 317693952. Its totient is φ = 194146128.

The previous prime is 253713787. The next prime is 253713839. The reversal of 253713805 is 508317352.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 253713805 - 2¹⁷ = 253582733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1102989 + ... + 1103218.

It is an arithmetic number, because the mean of its divisors is an integer number (39711744).

Almost surely, 2^253713805 is an apocalyptic number.

It is an amenable number.

253713805 is a deficient number, since it is larger than the sum of its proper divisors (63980147).

253713805 is a wasteful number, since it uses less digits than its factorization.

253713805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2206235.

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 253713805 is about 15928.3961841737. The cubic root of 253713805 is about 633.0646054451.

The spelling of 253713805 in words is "two hundred fifty-three million, seven hundred thirteen thousand, eight hundred five".