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55253315 = 51317311613
BaseRepresentation
bin1101001011000…
…1100101000011
310211222011022002
43102301211003
5103121101230
65252134215
71240434245
oct322614503
9124864262
1055253315
11292096a7
121660736b
13b5a7590
1474a4095
154cb6545
hex34b1943

55253315 has 32 divisors (see below), whose sum is σ = 78091776. Its totient is φ = 37140480.

The previous prime is 55253309. The next prime is 55253339. The reversal of 55253315 is 51335255.

It is not a de Polignac number, because 55253315 - 212 = 55249219 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33449 + ... + 35061.

It is an arithmetic number, because the mean of its divisors is an integer number (2440368).

Almost surely, 255253315 is an apocalyptic number.

55253315 is a deficient number, since it is larger than the sum of its proper divisors (22838461).

55253315 is a wasteful number, since it uses less digits than its factorization.

55253315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1679.

The product of its digits is 11250, while the sum is 29.

The square root of 55253315 is about 7433.2573613457. The cubic root of 55253315 is about 380.8781974139.

The spelling of 55253315 in words is "fifty-five million, two hundred fifty-three thousand, three hundred fifteen".

Divisors: 1 5 13 17 31 65 85 155 221 403 527 1105 1613 2015 2635 6851 8065 20969 27421 34255 50003 104845 137105 250015 356473 650039 850051 1782365 3250195 4250255 11050663 55253315