253870071 has 32 divisors (see below), whose sum is σ = 418790400. Its totient is φ = 133208064.

The previous prime is 253870069. The next prime is 253870093. The reversal of 253870071 is 170078352.

It is not a de Polignac number, because 253870071 - 2¹ = 253870069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253870051) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51991 + ... + 56663.

It is an arithmetic number, because the mean of its divisors is an integer number (13087200).

Almost surely, 2^253870071 is an apocalyptic number.

253870071 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

253870071 is a deficient number, since it is larger than the sum of its proper divisors (164920329).

253870071 is a wasteful number, since it uses less digits than its factorization.

253870071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4895.

The product of its (nonzero) digits is 11760, while the sum is 33.

The square root of 253870071 is about 15933.3006938299. The cubic root of 253870071 is about 633.1945499844.

The spelling of 253870071 in words is "two hundred fifty-three million, eight hundred seventy thousand, seventy-one".