252053021 has 8 divisors (see below), whose sum is σ = 286922304. Its totient is φ = 219176320.

The previous prime is 252053003. The next prime is 252053023. The reversal of 252053021 is 120350252.

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

It is not a de Polignac number, because 252053021 - 2²² = 247858717 is a prime.

It is a super-3 number, since 3×252053021³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 252052984 and 252053002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252053023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 497876 + ... + 498381.

It is an arithmetic number, because the mean of its divisors is an integer number (35865288).

Almost surely, 2^252053021 is an apocalyptic number.

It is an amenable number.

252053021 is a deficient number, since it is larger than the sum of its proper divisors (34869283).

252053021 is a wasteful number, since it uses less digits than its factorization.

252053021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 996291.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 252053021 is about 15876.1777830812. The cubic root of 252053021 is about 631.6802555616.

The spelling of 252053021 in words is "two hundred fifty-two million, fifty-three thousand, twenty-one".