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253532053 = 475394299
BaseRepresentation
bin11110001110010…
…01011110010101
3122200001202121001
433013021132111
51004401011203
641054023301
76165662335
oct1707113625
9580052531
10253532053
11120126425
1270aa7b31
13406ab288
14259590c5
15173d091d
hexf1c9795

253532053 has 4 divisors (see below), whose sum is σ = 258926400. Its totient is φ = 248137708.

The previous prime is 253532051. The next prime is 253532057. The reversal of 253532053 is 350235352.

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 253532053 - 21 = 253532051 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253532051) 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, 2697103 + ... + 2697196.

It is an arithmetic number, because the mean of its divisors is an integer number (64731600).

Almost surely, 2253532053 is an apocalyptic number.

It is an amenable number.

253532053 is a deficient number, since it is larger than the sum of its proper divisors (5394347).

253532053 is an equidigital number, since it uses as much as digits as its factorization.

253532053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5394346.

The product of its (nonzero) digits is 13500, while the sum is 28.

The square root of 253532053 is about 15922.6898795398. The cubic root of 253532053 is about 632.9134006334.

The spelling of 253532053 in words is "two hundred fifty-three million, five hundred thirty-two thousand, fifty-three".

Divisors: 1 47 5394299 253532053