252512154757173 has 4 divisors (see below), whose sum is σ = 336682873009568. Its totient is φ = 168341436504780.

The previous prime is 252512154757157. The next prime is 252512154757183. The reversal of 252512154757173 is 371757451215252.

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 not a de Polignac number, because 252512154757173 - 2⁴ = 252512154757157 is a prime.

It is a super-2 number, since 2×252512154757173² (a number of 30 digits) 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 (252512154757183) 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, 42085359126193 + ... + 42085359126198.

It is an arithmetic number, because the mean of its divisors is an integer number (84170718252392).

Almost surely, 2^{252512154757173} is an apocalyptic number.

It is an amenable number.

252512154757173 is a deficient number, since it is larger than the sum of its proper divisors (84170718252395).

252512154757173 is an equidigital number, since it uses as much as digits as its factorization.

252512154757173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84170718252394.

The product of its digits is 20580000, while the sum is 57.

The spelling of 252512154757173 in words is "two hundred fifty-two trillion, five hundred twelve billion, one hundred fifty-four million, seven hundred fifty-seven thousand, one hundred seventy-three".